There are lots of modern wooden dollhouses readily available on the market. I hope this trend in modern designs for kids dollhoues will translate into more modern designs in collectible versions.
The Swiss company Momoll, produces the following houses:
Dollhouse Ray Ray (Puppenstube Ray Ray) by Momoll goes for around $215. Details on Momoll.com.
Playtower Thing 3 (Spielturm Ding 3) starts at $250 and each additional floor is around $130.
They also produce this Furniture set Legno (Spielmöbel Set Legno) to furnish the houses for $40 of $55.
(All images from Momoll.com)