That is not a question with and easy answer. For me, all the touch points, that is the seat, grips, handlebars, pedals are not part of my consideration of money because these are important to be good for me. I'm not that fussy about them, it just that if I spend money on them, it mentally doesn't go toward what I tally up for the bike.

Expect to replace the cables and probably the housings. You will probably be replacing the tires as well. If the tubes hold air, I save them. Others have implied that old tubes are not reliable, however, my experience with old tubes has been good.

I like these Trek Hybrids. If I like the bike and it doesn't require a repaint, or for me even if it does, I will go for it. But if it required a repaint, the price would, of course, be far lower than $100.

And as Darth Lefty pointed out, someone will need to go through the bearings to clean, inspect and regrease them. If you can do this work then that is a big help. If you like doing this, then it is a bonus.

So, it all depends. If you are not into doing this type of work your best bet might be to look at new bikes. I don't mind spending time on cleaning and rebuilding. To me it is part of hobby. And the payoff is being able to ride it.

I hope that non-answer makes sense.