In a wipe, everything gets wiped which includes cars, homes, perks, and money. Personally, I think a wipe is the best decision since it will allow people, rich or not, to fully experience the new content that 4.5 has to bring. If people already have millions why are they going to try the new systems to make money? A wipe will also make the economy last longer rather than having to wipe at some other time down the road. I know that the people who put in lots of hours grinding obviously wouldn't want a wipe but it's for the better of the server's economy.