I have been researching for some better quality to upgrade my turntable. at the moment i have a sl-j300r but wanted to upgrade to something. i've been told that the tonearm and cartridge have a huge impact on the sound. i was in search for a semi-automatic or automatic turntable just so i dont need to worry about it in the end of the record.just so i dont need to buy a stylus every few months. haha. Also wanted to be able to change cartridges if possible, check which one i like best I've been researching and i can get SL-120, SL-220, SL-23, SL-1700 and SL-10 (which if anyone could say why?!? looks just like mine with fewer functions) all from 200 bucks or should i just go new ? like Audio-Technica AT-LP3, AT-LP60(which cant change cartridges), AT-LP1240 ? any other suggestions? what are your thoughts?