Simple answer.... at first glance, and without deeper knowledge of them, one Tele may seem fairly indistinguishable from another. But, when you get down to appreciating the finer details, each and every Tele guitar plays and sounds different from all the other Teles. Beyond that, different finishes LOOK a lot different, as well. (There are quite a variety of wonderful colors and finishes to enjoy - in ADDITION to the playability and tone differences of the guitars.) Different fret board materials, different neck profiles, different pickup types, different pickup specifications, different electronics, different bridges, different body characteristics (solid bodies, thinlines, contoured backs, bindings!), and different finishes. I've got an even dozen Teles; each and every one of them is a unique guitar with tone and playability that is noticeably different from each of the others that I have. For all the reasons I stated in the previous paragraph. Lastly... I enjoy having the variety, and I am able to do so. Bottom line is, that's all the reason I need to have more than one Tele.