I paid like $1400 for a package that included PS, AMCAS, some secondaries, and a mock interview. I think it was worth it. It is a drop in the hat in the grand scheme of things, and it has been helpful IMO. I wouldn't spend more than that though. I definitely don't think it's worth $3000+.
I found most stuff on SDN and reddit, but I was having a lot of trouble expressing my story. I agree that a standard premed doesn't need to pay for consulting. If you do decide to go with it then make sure and do your homework. I shopped around for a while.