After reviewing this thread, I ordered an HDT-1 on 1/6/7 from NewEgg - at that time, it was $180 delivered, so after the $25 rebate, I am in at $155. I figure my cost of being an early adapter and selling to upgrade to an HDT-2 will be relatively low. Now that I've used it a couple of weeks, I have delurked.
I have been using a Sumo Charlie tuner that was rebuilt by its designer about four years ago, and I also stream Internet stations via a Roku m500. These feed into a B&K Ref 30 preamp (the Roku via a digital connection), and I have a Parasound amp.
Overall, I am impressed. Selectivity is excellent, sensitivity is very good, sound quality is good to very good (and would be better if I could lock a conventional signal). HD is interesting; although it appears that a couple of Austin, TX stations listed on the HDradio website are not yet broadcasting HD signals. Unfortunately, two local stations have beautiful conventional signals but sound flat once the HD signal locks. From this forum, I understand that is more of a station issue, but it is annoying that I cannot lock the preset on the conventional signal.
I have the standard wish list for a future version, namely the ability to step the LCD backlight settings (I think the THX standard requires an ability to turn off such lights), the ability to lock a conventional signal, and one-step recall of a station memory (programming and direct frequency access would then require an initial key). It appears Master Theseus has me covered there. Those are the items I would expect for $225.
I would be willing to pay up to $349 for an HDT-2 if, in addition to the HDT-1+ features, it had a digital output (happy to see that will likely be on the HDT-1+), could stream Internet stations, and could be programmed, addressed and updated via its network IP address. The model here would be the RokuLabs method of streaming Internet radio (an m500 originally listed for $149, and a refurb at the RokuLabs website is currently $99, so an HDT-2 with the Internet radio features shoud be able to meet or beat the $349 pricepoint). I would not want it to require any computer software (beyond the browser -- special software is a dealkiller for me) or stream media from my computer (that is the Roku's primary job). Rather, I would want the HDT-2 to stream directly from my network (without a PC powered), and have a simple interface like the Roku to set and rearrange presets (including conventional radio presets) and program Internet stations that use the top three or four codecs. It would preferably have a way to send a username and password for stations that require it, which would enable satellite radio subscribers to stream those stations from the 'Net (optionally, the tuner could also periodically sync to a time server to avoid clock error issues). A standard network connection would be fine - if I did not have a convenient wired network connection, I could set up a bridge (that would need to be referenced in the user manual). Alternatively, a PCMCIA slot with an included conventional network card and the ability to substitute a separately-sold wireless card or a satellite-specific interface card could be employed, but that would probably drive up the cost beyond what I would be willing to pay, and the optional cards would probably not have enough sales volume to permit a reasonable price. The other upgrade on the HDT-2 would be additional memory - three banks of ten for the NET, three for FM and two for AM. I am not that interested in a recording function (unless it can be done in a manner that does not add much cost, such as writing an MP3 to a user-supplied memory, such as a thumbdrive, via a USB port), but the ability to program a few on time/preset/off time-sequences might be an interesting method to record to another component (my minidisc will trigger on input), and would have other uses as well.
Given that the included hardware can decode network codecs and that many radio stations stream both conventional and HD programming (and many shortwave stations also stream), including Internet streaming would result in a universal tuner (streaming, is, in a way, a spiritual successor to shortwave, so including it would be consistent with the Sangean brandname) that would give the HDT-2 a selling point beyond a conventional tuner to appeal to consumers outside of HDradio markets, and give the tuner a longer shelf life and wider appeal should HDradio not continue to penetrate the broadcasting market.