Another Thomas fan (mom) here!
We have the wooden stuff, and the take-along. Love them both> the take-along goes on trips and to his room (and is much cheaper!) I have the wooden set in the living room,, with a train table. I got our basic train set, and table at Target (about 2 yrs ago). The train set came in a nice box, with a padded lid for a seat. (that's usually my seat while he plays Thomas and I watch and rebuild his track

) Kids of all ages (the neighborhood gang) love coming in and playing with it. The nice thing about most of the wooden set is that you can do alot of mismatching with them. We have official Thomas pieces, Brio, and several off-name pieces all together. Check you local Craig's list for people who might be looking to get rid of their collections. Don't forget Ebay too. ALl aboad toys is a great website for Thomas stuff> they usually have discount codes out also.
We enjoy our table, and is is handy for
Lego creations also! (hate stepping on them!) If you have the room, I say do it. Our table is just plain white, except for the stickers the kids like to put all over it
I gotta put in my two cents on the experience: A Day out with Thomas> GOTTA DO IT! All of us (big sis too) loved it! I think DH and I thought the "real" Thomas was cooler than the kids! I highly recommend it, they are only young once and it was a thrill to watch my son turn around and see Thomas, big as life, pulling up to the station > we didn't tell him, it was a surprise!