Buy new or replace bulb (Epson 8350)

[Stridulent]

So I'm currently sitting at approximately 700 hours used of the 4000 bulb lifetime of my Epson 8350. I can't decide if I should sell it before too much of the bulb life is used, or if I should keep it for years and years and just replace the bulb for about $300 when it expires.

I have enjoyed the projector for the most part. It gets the common iris error every now and then which makes me worry some.

I do want to upgrade to 4k eventually, once the projectors fall below $2000. I realize that will be 5 years at least still.

So my options would be:

1. Keep projector -> buy bulb -> sell projector for very little -> buy 4k

2. sell projector around 2000 hours for decent return -> buy new -> sell new for decent return -> buy 4k

Thoughts? What is everyone else planning to do with their current projectors?