[tha_main_man]

Hey I'm new to these threads, and I was wondering if someone could help me out with a question I've got.
I'm checking out this 1988 Monte Carlo SS, it's got all original parts, under 30k miles, and has been garaged for most of it's life. I'm wondering if this would be a sign I have to change out all the parts, seeing as they are 22 years old, but since it has been garaged and has "under 30k miles", I'm not too sure. Any thoughts? What kind of price tag would you put on this? Thanks.