the diff between martial arts and wrestling shoes isnt just high and low tops. the soles are also very different. martial arts shoes have very thin soles with a more unique grip. but in my opinion when you compare all martial arts shoes, you're paying for the name, design, and how new the product is -- just like everything else
btw i thought most kungfu practitioners used the standard kungfu shoes w/ rubber soles? normally they go for $5ish