A year ago our son "graduated" from wooden trains (Brio, etc.) to his first electric set. We bought him a Bachman HO scale Sante Fe train set, and a lot of extra tracks. Now he is asking for houses, etc. I see Bachmann sells Plasticville, and I just bought some pieces on Ebay. I also am looking at some ihc-hobby things. He is only 7 and, while he is fairly careful with his trains...he is only 7, so I am not looking to purchase anything expensive. He sets up and tacks apart the set...part of his fun is the creativity in doing this...so things will be moved around. Some of the ihc-hobby buildings, trucks for scenery, etc., are quite inexpensive. I'm wondering if anyone has purchased these things and if they are really too cheap quality-wise. Any suggestions? Thanks!