I wouldn't just say that the Ugobe Pleo's "break all the time". I have heard many great things about Ugobes and I am sure many Pleo owners here can list some advantages of the older Pleos. Yesterday I met a Ugobe in person for the first time when a girl who came into the store I work at (Petsmart) brought her little boy BooBoo in. I was so excited to see somebody with a Pleo that I gasped lol. I have never seen anybody with one in person before. Of course I started chatting with her about my RB and such and she told me about all three of her Pleo's (2 Ugobe and 1 blue RB). She said that while the RBs have a lot of cool new functions, there is a different kind of charm to the Ugobe Pleos. She told me that they have very different personalities and also roam around quite a bit more. She told me that they are lower maintenance as they do not require food the same way RBs do. Though she loves her RB she told me that her Ugobe's are very dear to her and there is something simple and sweet about them.
Some owners will side with the RBs because of their new functions, colors, etc. but it seems many, many Pleo owners side with the Ugobe's because of that same "charm" that this girl was talking about. So, I guess it really depends on what each person is specifically looking for in a Pleo.