I'd only buy a Topre if you're sure keyboarding is your hobby and if you're sure this is what you enjoy.
For me, there is no doubt that this is my hobby and this is what I enjoy. Bought a 55g, love it, rotate it monthly but still prefer MX (mainly from a building/customizing perspective)
Topre was worth it for the knowledge and experience. Respect the switch, even if it's not my favorite.
Oh wait was that not the answer you were looking for?