Don't know how reliable/durable they actually are, but the Christie Eclipse Dave mentioned apparently has 30K hours life to 80% luminance. IF it doesn't die prematurely, it'll probably last ~8.5x as long as most FP lamps... and then some... because by then my eyes may well be a whole lot less...
Something to aim for?
Me (to wife): We'll never need another upgrade nor go to the theaters ever again!
Wife: Well, it's either me or that big ugly thing hogging up space and soaking our bank account.
@JohnRice: Well... only if you can still spend 3x that much on the audio side, including all...
Heh... but actually, what we really want is the new flagship big gun that @Martin Dew posted the other day: 10K lumens for HDR that might actually come close (enough) to competing w/ OLED, et al. And it *only* costs ~3x this one... and (give or take) ~1/3 of the cost of a 400ft HT room space...
I imagine the optical aspect will always be reserved for the uppermost tier of FPs. It's the other advanced tech built into such that will eventually trickle down to FPs us mortals can justify owning.
Well, of course, there's also the issue of having a dedicated HT room along w/ needed room...