Quite the contrary. A tonearm am cartridge can not perform at their best on a less than optimal turntable. Making any mechanical device "disappear" in the context of a very sensitive vibration measurement device is not a chore for the 1/2 hearted.
Over the years I have managed to expel the the appearance devil out of my person having bought what turned out to be inferior devices that looked cool. I could care less what a piece of audio gear looks like as long as it is well crafted. The Thorens TD 1600 is a great example of that ethic. Thinking this way will save you a pile of money in the long run and most probably the result will be a much better system.