I'm pretty sure Guitar Tricks accepts both cheques and money orders.
And to be fair, there are 24 free lessons which is probably worth a lot more if you took the lessons privately.

The membership to the site is free giving you full access to the forum area.
The 3500 video lessons cost a bundle to place online and we have to charge for them.

Let's face it. Even so, we're still the least expensive pay site on the internet and have the most to offer.
If we didn't charge something to pay the instructors and invest in improvements to the site, this place would have folded a long time ago.
We were completely free for over 7 years and the main reason we had to start charging was so that, #1... we could pay our instructors a small compensation for all the years that they'd paid out of their own pockets to make this site work. And second, so that we could offer HD videos and hire people to do things like transcripts of the tabs. As well as work on improvement in the future to add such things as iPhone access, large quantities of Jam tunes in the Jam area.

Guys that come on after two posts and jump to conclusions, automatically chastising the site base on a quick perusal of the site need to take a couple of weeks and get to know the place before coming to such quick conclusions.