We have the Barbie Glam Vacation House--I'm assuming you mean the one that is $34.99, right? My dd9 got it last Christmas from Santa and has been playing with it today with dd7. I really like that it's two stories, though small stories, and that it folds up. My dd did say that when her Barbies are wearing heels that it's hard to fit them in the small kitchenette area standing up. I'm not sure if that problem is rectified with the Townhouse or not however.
For our family, the Glam House, along with a car and my dd7's Glamour Camper, is enough. I've thought over the last several years of getting them the Barbie Townhome, and I have no doubt they'd love it, but they don't have room in their bedrooms for it to be out all the time and I didn't want it in our family room either. Good luck with your decision.