I don't want to sound dumb, and I guess I shouldn't have put confusing.... I guess scared about. The big thing, and kind of the only thing that makes me a little apprehensive, and oddly enough I didn't try to find any statistics, is erosion of bands, does this happen a lot? Has this happened to you? I've read something's that say you may need to get your band replaced every couple of years, but I've read some success stories that say your band will last forever. Is this individualized too.... or is it just one if the parts of having a band, every couple of years you just go get a new one?