I've been thinking, and I think that it's sort of unfair that one can get one roast on someone and get their entire hotel room for such a low price. I think someone should pay $10 for every 40 square tiles the level takes up to propose a challenge instead of a set amount of money. After all, it takes a lot of money to build the house and paying the same for a small dinky house as a large penthouse isn't very realistic.

In addition, I think that some "special edition" items such as the Seizure Sofa (or was that couch?) should have special value. Then, people could have a value to trade furniture and seek "ultra-rare" furniture and electronics. Just an idea.