I don't think there are any come backs with bulbs. It might be worth a try if your projector is still under warrenty.
The problem from what I've read here is that the life of a bulb can be drastically reduced due to how it is used. In order to preserve it you should ideally run your PJ for at least 30minutes once you have turned it on, minimise the number of times the PJ is turned on and off (eg. don't turn off half way through a film for a 20 minute break, leave it running) and never turn off at the plug before the fan has run through its cool down cycle. Power cuts therefore are bad news, have you experienced any when the PJ is on and how do you use your PJ in general use.
Apologies if I'm teaching you to suck eggs. I'm interested because I have a PLV30 also. I'm no where near 900hrs yet so I don't know how much difference all the TLC I show mine is going to make. I would also be interested to know where you get a replacement bulb from and how much it costs. Here is an email for someone who has offered to give me a quote:
stanley@yelnats.com
I don't know anything about them except that it came via a PM on this forum from someone who had obviously picked up from a thread that I was a PLV30 owner, I'd been asking about bulbs myself. But there is no user name the PM says "deleted user". Don't know if that's a bad trader or what so beware.
Also, I think there is a warning in the manual against running it once the warning light has come on.
Crocodile JD