Personally, this is just me, if you can get past paying for hacks then do it. I have never nor will I purchase a hack, I would rather make my own and or find a free one; to me paying for a cheat is rather stupid.
However I understand it gives the creators income and you happiness for a time, but to me if I wanted to waste money, I would purchase junk food or something along those lines.
I haven't played S4 before so I don't know the game that well nor do I know the ways around the games hack shield; but you said it's filled with cheaters, so it must not be that hard.
Crypt offered you a rather fair price though, some of the prices I have seen around the web are extreme and yet people buy them.
Anyways, thank Crypt because he saved you some money in the long run.