I believe the Warthog has a plastic gimbal, the more expensive ones are metal and should last longer.
I've just bought a Warthog through Ebay, less than half the new price and I suspect it might outlive me...
I had an X-52 followed by the TMWH. I'm now using TM Hornet Stick on the Virpil CM2 Base with heavy springs for my center mounted stick. It is easily the best stick setup for center mount I've ever used. The CM2 base uses 2 axis aluminum axies for X and Y. And Hall sensors. So it's very precise. It comes with the standard Springs installed and is super easy to trade out the springs and the CAMs for making the stick useful for other vehicles like space or helos. I recommend this setup 100%.
I use the WinWing MFSSB Force sensing base with the WinWing Viper EX grip as a side stick (without the stick shaker unit). It's the most precise stick I've ever used. It's unreal. If you fly FBW jets, this stick is incredible. If you fly DCS, or Falcon BMS it's a tank. The stick is all metal with some kind of plastic resin buttons. It moves like the real Viper stick only 1/4" of real movement and then force senses up to 6kg or force and can be scaled back to use less for full deflection. Can be tuned in all directions independently. 100% recommend as well. You won't be disappointed with either.