T.B.
Why glue down the tracks? Let him be creative and learn to put the tracks together himself, maybe even on the floor. It's great for his dexterity, and also helps him better understand how things go together. It's probably why he is being so "destructive"! :) He just wants to create!
We found a great train table at a garage sale for $30- it was a steal, but pretty large. I agree that Ikea probably has some good choices. I think Target does also. I'd find one, then let his imagination take over with putting the pieces together! :)
Good luck,
T.