I paid about $25-30 per session. The difference was that at first I signed up for one plan, then switched. I also had to pay for the gym membership, another $40/mo or so.

That is not expensive at all.

I just picked up a couple of brochures of yoga and taekwondo classes near my home - each go for 150$ per hour (individual) and 100$ per hour(group) !! And crossfit is 200/month.

Yeah, martial arts are expensive. I was looking at the price per year for this, which works out to be quite a lot.

I am not a fan of CrossFit for many reasons. At best, you simply don't get your money's worth. At worst, it's a one-size-fits-all system with no structure to it. From personal experience, and word of mouth, it's also really easy to get injured doing it.