Relatively speaking Maxa is not that expensive, actually less 2x what the others cost.
Currently I fly Aspires. A nice plane. Also Xplorer, Perfect, Satori, Supra etc. are nice planes. If there were a new plane that would give me clearly better contest performance than Aspire, say 5 positions up in the list in 100 pilot contest, I would pay 5ke for it without blinking my eye.
Fortunately F3J is about flying skills. One cannot buy the wey into podium in F3J
The real question is: is Maxa worth to mess with? Lighter than 1.9-2kg superfloaters are nice idea but in contest environment they are not needed that often. Maxa might have superior performance is some niche conditions, but in more general terms working with the current airframes is a more rational choise. Or just travel to big competitions to learn something! One can fly a long way zig zag across the Europe with 2000e