Lately, I've been dying for a fretless. Now, I've never owned a fretless bass, so I don't exactly want to break the bank on it - just enough to get a solid, good-sounding instrument to learn the ropes on. Unfortunately for me, I've been playing 6ers exclusively for the last 3 years, and pretty much have my heart set on continuing to do so. It seems like the vast majority of fretless 6's are in the >$1200 range, which is more than I would like to spend. It seems to me I basically have 3 choices: A) Defret my old Ibanez SR506. This is probably the cheapest option, but it was my first "real bass," and I'm kind of attached to the idea of leaving it in its current state. If defretting it is by far my best choice, I could be persuaded. B) Buy a fretless 6. Recommendations? or C) Buy a midlevel fretted 6 and defret it. Again, recommendations? Thanks for any and all aid!