We were very lucky when ds13 was about 7, a neighbor dad who worked at a printer (big printer) had extra rolls of white paper, nice stuff - the nub ends the printer can't use. We got one roll and it has helped supplement the other paper we purchase, plus you can get one really big sheet and roll it out on the table and several kids can work together. Lasted for years.

I did see those wooden houses, I think they do look much more sturdy. thanks!