I would imagine all turntable manufacturers sell relatively few of their highest end models compared to their entry level products. Across the range of all audio products, I've noticed those who purchase the most expensive products tend not to discuss their purchases in forums so much as those of us with lesser financial means. As to whether there would be differences in reliability between lower end and higher end models, metal Acoustic Signature tables follow pretty much the same engineering design principles. More money gets you more metal and mass, more platter silencer technology, more vibration damping, etc. The only variation in electronics is that the Thunder and Ascona have the Alpha-DIG motor power supply and the lower end models use the Alpha-S power supply.