Hello all - I'm an upright player whos looking for a first-time fretless bass guitar. I'll play jazz, funk, and some rock with it (using a GK MB150S amp). I've narrowed my selection down to either a Fender American Jazz Fretless or the Fender Standard Jazz Fretless. The dilemma is whether to get the $400 standard version or the $1000 American version. Is it really worth the extra money to get the american version, especially since it's my first electric bass?