Some turntables are in a different league to old ones. There have been huge advances over the last 30 years. The key developments have been in reducing resonance, better bearings and tonearm quality.
Your Technics has good speed stability and is probably limited by the tonearm design. If it's possible to fit a better arm (e.g. Rega RB250 or some derivative) and a Dynavector 10X or 20X (high output) you would have a significant upgrade.
If you're tempted to change tables, those driven by rubber drive belts won't give the speed stability you are used to. Don't buy anything unless you have heard a convincing demonstration.
I think the Clearaudio turntables I've heard are great to look at however, to my ears, acrylic sounds a little lightweight - they are at their best on female vocals with acoustic guitars but not so good on rock and large orchestral.