shoulda told him all about LP's, once that was said, you could then explained the difference between 33's and 78's LP's and thrown 45's in just to make it interesting,
fuckmefunny, back in the day a good turntable with an excellent needle running through a good rack system and speakers was every bit if not a bit more as good sounding as a off the shelve CD system of today,
hell you could even put an excellent diamond tipped needle on a run of the mill hi-fi and make it sound great as long as the vinyl wasn't scratched too much, because it would pick up any inperfection on the records surface;
hell even the CD player's being sold today suck ass, they got plastic lenes instead of the glass lenes of the one's sold in the late 80's early 90's,
you can't tell the difference unless your running them through a good rack and speaker combo though, but an old glass lens will pick up much better than a new plastic lenes will.