Never sold them but I went to a Partylite party the other day. A little too expensive for my liking, though. I bought 3 votive holders for $25. I don't even want to think about how much less they would have cost at Pier One.
Other then that, I really think that they would be a good way to make money. I have also been to a Gourmet Chef party and if I cooked, I probably would have bought a lot of that stuff. But alas, I don't cook.
I have a friend who does Passion Parties. I would explain, but it's a little adult for these boards. She makes really good money, though.
I think if you are a good seller, you should go for it. All of these things seem like a good way to make extra money.