Egidio,
Thanks. I know what you mean about the price. In the meantime you want something to provide a level of protection.
I've discovered yet another consideration. I bought the car mount so I can have the phone mounted primarily for navigation. The mount is pretty nice. Seems sturdy. It is a little tricky getting the phone out of the mount, but that is probably just a matter of learning the best technique. The biggest issue I've found with the phone, not just in using the mount, but in general, is with the on/off button and volume toggle directly opposite each other right where it seems is the best place to grab the phone to pull it out of the mount. Again, I'll get use to it. Anyway, back to my point. I would bet that many cases, if not all, will not be compatible with the mount. In other words, it fits so snugly and precisely (the mount has a sliding section that plugs into the mini-USB port) that the case would have to be removed in order to put the phone in the mount. So, while I don't see myself using the mount all the time, for those times when I do I'll want a case that comes off fairly easily.