Where are you executables!!!

Jokes apart but is it practical that I decomplie you app the amount you have charged means there will also be a lot of code to it. Decompiling it, understanding your logic, basing things on it (I wont want to sell copies or else your exe's were fine) and selling it to a similar client (hopefully).

Is it worth the time that will be spent on it, maybe by the end of the decomp the whole thing will be outdated.

Regards
Bhavbhuti