Twitter followers: quantity or quality?

I just become a member of this AWESOME site that gets you TONS of followers: http://tinyurl.com/someurl

There are a lot of sites that offer to get you tons of Twitter followers for a few bucks or even for free. These sites claim they can get you 500 followers per day, that you will end up making cash out of Twitter, that they're awesome, etc. However, these services are quite lame.

1. You login to one of these sites with your Twitter information.
2. After you login, the site will make you follow about 100 accounts.
3. Little by little your followers will also increase.
4. If you decide to pay, your followers will increase much faster.

In the end, you will follow and get followed. But... The followers you get using these sites are not really followers since they're obliged to follow you. They represent a number and nothing else.

Tip: avoid these sites.