The recent discussion has got me curious about the whole bulb life / cost equation. So if this is obvious to y'all that have owned projectors before, then I apologize. So I was doing some looking and it appears that the bulb for the VW600ES is the LMP-H260. Sony Parts and Accessories doesn't yet list this item.
They did carry (albeit not in stock) the spare lamp for the vw1000ES. The LMP-H330. Interestingly the Sony price for the lamp is $699.99. I know that the 100ES was a $25k item, but I guess I was a little surprised at the list price for the bulb. I checked out a few of the lamp supplies listed at Projector Central and none of them carry a listing for this bulb, or for the 600ES for that matter. So I suppose it might be too early for last years PJ's to need a new bulb and I believe I recall hearing that the 1000ES came with a spare bulb.
With my 600ES on order and my guesstimate that it will see on average 2hrs of use per day per year for 700-800hrs per year, I guess I was thinking I might be needing to change the bulb once a year. So if the bulb ends up running $700 per, this becomes a not insignificant annual maintenance cost.
I suppose these are "1st world problems" and must sound like I am the guy complaining about how much it costs to replace the tires on his Ferrari.
I just wanted to share my observation.
The MSRP for the VW500/600 lamp is the same as the VW1000/1100 lamp, $699. 500 hours of lamp life on a system that sees 800 to 1,000 hours a year is not an insignificant cost of ownership and that is why it should be considered in the system design. It should be brought into the discussion so that the customer can decide if the cost is worth it for the screen size.