A commenter on the Brick Boards gave a comprehensive overview of old Volvos and I like what he says about the 240s:

240–These are starting to be considered classics now, and prices are on the increase, particularly for clean late models.

I’m starting to wonder if the 240s are going to flatline in value, rather than becoming valueless. There have a been a few posts of people seeing early 90’s bricks with over 120k miles going for over $3000. I don’t know about INCREASES in value, but I have the feeling prices will remain flat in that range for well maintained cars.

This is in opposition to what the commenter sees for 740s, which he sees as less desireable. Funny, I used to prefer the 740 over the 240, but the 240’s design aged better somehow.