I wouldn’t mind living an extra 1000 years even if i had to work at a mcDonalds, I would spend my free time researching history and archiving things for future generations.
Since 1,000 is an eyeblink in terms of time compared to the afterlife, i don’t think a few extra 1,000 years would be all that much except having family memebers who preceeded me complaining that I was late to heaven...
The only problem with living for 1000 years is if all the world’s economies crash and/or the whole world goes full blown Socialism, then the next 1000 years are going to be the Dark Ages II with even worse horrors and might not be worth living through.