I've been playing fretted bass for a little over a year now, and I am interested in fretless basses, and I have some questions. 1) The only difference in fretless basses is the frets, right? There are no different strings or anything? I'm pretty sure that the pickups are different. Is that correct? 2) What is the price range of a 5 string fretless bass? 3) Which fretless basses do you recommend?