I have a 5040UB I haven't used since getting a 85" panel tv back in October. Never thought about selling it because I always thought I'd find another use for it, but haven't yet and at this point probably won't.
The second bulb which is currently installed has 2280 hours. I still have the original bulb which has about 2800 hours on it. When I replaced the bulb it wasn't much brighter than the original bulb. I bought it new two years ago.
It's never had any problems. It's been on a shelf attached to a ceiling beam since new so it's in excellent condition.
I'd be willing to let it go for $800 plus shipping. I'm north of Chicago so shipping looks to be around $42. It would ship in its original factory box.
PM me if interested.
edit: I just found my note about how many hours are on the original bulb, it's 3089 hours.
XMC-2 FW1.10, 7.2.4 Martin Logan 13A, Motif, IW Surrounds, 4i Tops, B.Latino M-125 MonoBlockHeads, Krell S-1500, XPA-200, BasX-800, Sony XBR85X950G, Sony UBP-X700, OPPO BDP-105, ATV4K CRM-114 XBT-1 Elwood P Dowd: My mother used to say to me, Elwood, In this world, you must be oh so smart, or oh so pleasant. Well, for years I was smart. I recommend pleasant.