1990 yz125........is it worth it?

In my area of Canada pretty much any dirt bike that runs decent regardless of vintage is worth a minimum of 1K, since it isn't running I would low ball him if you want a project type bike. Keep in mind that parts and repairs add up in a real hurry and you could easily end up dumping $500 plus into this 15 year old bike. What is your budget? if you can go up to $2500 you should be able to find a half decent late 90's 125/250. For reference I just picked up an 02 RM250 and could have had my choice of 5 different 02's (not all RM's) for between $3500 and $4000. Before someone south of the border jumps in with the "those prices are way too high" all prices quoted in Canadian $.