This guy has a deal on craigslist going; Yamaha rbx-170 and a little guitar combo amp for $60. Price is so low because he is flying out. Now I was gonna bite. Probably resell the amp; but my question is: Is the RBX a nice enough little bass to put the money into upgrading the pickups? Sound like its worth more? Or should I just resell it? I was looking to get a P/J bass, so how does an upgraded yamaha stack against upgraded squires?