I'd go WOZ - It really is an outstanding game if you can get past the theme. So much to do and it's nearly as brutal as TRON.
TRON, while great and fun, is pretty shallow. There's a strong consensus that a TRON Vault is coming but i doubt it'll be anytime soon. Probably next year at best....this is my guess and my opinion so take that for what it's worth 
Speaking of WOZ; one thing to watch out for is the light board issue. If you get a 2.0 version you'll be fine. If you get a used non-2.0 version expect to pay extra $ long term even if the game you buy doesnt have issues at purchase date; doesn't mean it will or it wont, but you gotta keep that on the table. I also heard that JJP was working on a 2.0 conversion kit so that's promising.
