Provantage, actual was a few bucks more than I said.
The E3 adds a bunch of features you may not need like Ethernet, wireless LAN ready, and of course the LED Backlight. Color accuracy is better on a traditional backlight tube vs. LED, which is why you might have liked the non-LED model better as well.
Yeah the LAN and wireless mean nothing to me. I don't even have the stream option on my Netflix account anymore since they started to charge separately for it, and far too much for that matter. I feel it's better now though because I rarely streamed them anyway and the DVDs are cheaper than what I paid previously if you only get the hard copies. I can now get Blu-ray access with my two discs at a time account for the same price I was paying for DVDs and streaming before, which is a better deal IMO. I also don't own a laptop or any small portables, so the wireless is useless to me.
That brings us to the LED. You're right, the colors are less accurate with LED, but I found on these sets very noticeably so. It's common in lots of sports played on large grass areas (golf, football, soccer, baseball) that the grass looks very yellow-green. For many that might be one of the only tradeoffs on color though. It has the typical vibrant, slightly over exaggerated color many prefer. Samsung fanatics are often drawn to LED because that brand uses a lot of color saturation in their video processor. Not as much as they used to, but still, far more than natural colors actually look in real life. Aside from that the normal visual benefits of LED, being better contrast, are hardly present in this set.
I really see no reason to go with the LED version. Even if I eventually want a LAN port for my HT gear, I'll be getting the 2nd to top of the line Panny Blu-ray player that has one built in, and they're dirt cheap. I really think a lot of these features they're putting on TVs is more of an excuse to jack the price up than anything, though I respect that everyone's opinion is not going to be the same on which features are desirable.