Condition is king my friend, cant help with prices other then big ol' ranges unless we understand overall condition.

For a general swing I always go on Boston pinball website first they are pretty close

I'd say you have 8 grand in games there

T2 seems to sell out here in the $2K to $2500 range. Game show I have seen listed on CL for around $1750. MNF is usually $1200-$1500. Space Invaders around about the same, between $1000 to $1500 depending on condition. Your pins may be in better shape then most found on CL though.

First rule of buying a new Stern game is to sell your used games before the release of the new title before the market is flooded

I'd say you're not going to get north of $2k for a T2, and Game Show probably closer to $1500, though maybe $1750.

Those are good ballparks for guessing what you have though.

Yeah T2 is an odd one, when I first got into the hobby (less then 2 years) it was a sub $2k pin easy. But everyone I see listed lately is $2500, but maybe there is a big diff between listing and selling price

There was a really nice one that went in Allentown over the weekend for $2100. It was the nicest out of the few that were there, most of which were priced higher. It played great and was in excellent condition.