1. You're cheap. Embrace it! 2. Let the other guy take the depreciation hit. Especially if he doesn't 'bond' with the instrument- and you get it in 'as new' shape. 3. The particular model you want is no longer/not currently made. Exhibits A and B...... the Hot Rod Telecaster and the Les Paul Junior. 4. 'The old stuff was better'. Contentious. A thread, in itself. 5. That first ding, scratch, or chip? No longer a problem. Write your name on the instrument, slap on stickers.....it don't matter! 6. Brings fancier guitars down into your price range. Perhaps the best reason of all? There are probably a dozen more. Mojo? Ha!