So, they technically are, but I'm really picky with what I take.
There's a few reasons for this, but I can boil it down to two big ones:
1) Writing to other people's specifications can be very draining, since it doesn't really "come from within" the same way something I write for myself does
2) I have a busy day job and I don't need additional things-that-feel-like-work in my free time