To complete my thoughts, bearing noise in a turntable is not always recognizable. In a quality turntable, it can manifest as high frequency distortion on top of the signal, which appears to be clarity in the triangle or the harpsichord. But this is artificial, and becomes wearing.
When you hear an air bearing, preferably three dimensions of air, you hear an absence of this HF distortion, and the result may sound 'dull' - that is, until you realize that 4 hours have passed and you still want to listen. And you just don't listen to the other turntable with the conventional bearing. At all.
In a phrase: clear, but not analytical.
No maintenance problems with my setup. Several stages of air filtration solved that.
But there's more to the initial setup than for a conventional turntable, so be prepared for that. I suggest that you listen to some turntables, including at least one high end like Walker or Techdas, and decide if it's worth it. If not now, perhaps in 5 years. Whatever. It's your money and it's your enjoyment that counts.
Good luck - and tell us how it works out!