To me YZ870C, RC10, or etc is the state of art product. They are under the stream of "reasonable design" which using most direct and simplest way to solve problem. They push this school of though into the extreme to meet the goal of race. It proved to be worked and this design dominant the market. It worths to keep one. In compare with Avante's design, it is the outcome from the left side of human brain.
However, Avante is the state of art under the stream of non-reasonable design or it could be called specific or uncommon. It's design was specially to handle a set of specific problem which proved to be worked..... in concept only! It also reach its extreme to meet the goal or race...but failed because of the material available in its age. To me, it is also variable to keep even a re-release. I believe it still not able to catch up with today's race level. But it is full of passion. It is come from right side of human brain