So far, buying a Palm m515 for $20 from a cow has been a good investment. I'm tempted to see if a yuck will be willing to sell me one of their Palm Tungsten T's for $20, but I don't really want to spend money on something that I don't need when I have something that works already. Plus, I'm not a big fan of the Tungsten T. The sliding open feature on it is one more thing that can break and ruin the device.