My turntable weighs about 60lbs. The platter alone weighs 20, with another several pounds in layers of copper, wood, and delrin on top of that. The combination of platter, added aftermarket top-plate, and spindle weight weighs as much as an entire SL-1200.
And the more you pay in a Rega table, it doesn't get "thiker or heavyer". They have a different approach that is not all that different than how BBC loudspeakers deal with vibration and resonance. That being that you aren't going to get rid of all of it, so move it to a less harmful part of the audio spectrum and allow it to escape the system as quickly and harmlessly as possible. It works in their use of that design. There are many trains of thought in turntable design. Anybody who thinks there is only one way to go, is going to get my charge of a complete lack of any meaningful experience. You can not hear a upper-tier Rega and say that it sounds bad without simply lying through your teeth or being unable to hear through your own bias, whether you choose to buy one or not. That you can't even admit there's a solution that works besides the Technics tells anybody all they need to know about your open minded exposure to different tables. Anybody who thinks that only one drive system, or one plinth approach, or one isolation approach, or one time period approach is the only one worth considering is wrong. That's all there is to it.