If one replaces leaky electrolytics as they fail, I would say "probably, yes." The floppy drives will eventually die due to head damage if used too much (or cleaned too much), but of course such could be repaired with new heads. I suspect the next likely-to-fail parts would be the flyback and CRT.
But the chips on the logic board... Because they all run cool even without heatsinks, and they are all low voltage parts, they'd probably last 50, 75, maybe even 100 years.
Let's all promise to report back here in 25 years to report our success, okay? [
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