This particular site does not sell picks, but the cappers who provide content for it do at their personal sites. I myself have never bought, but I have access to so much inside info there is no need for me to. But I'm pretty okay on my own, IMHO, and will even argue with these guys and be right at least half the time.
It's very much like poker in quite few respects - BANKROLL MANAGEMENT is key. You have you BR and divide that into "units", or wagers (like poker buy-in) and you would like to have 100 to operate with.
You will spew money if not extremely disciplined.
One unit per game - sometimes 2 on the "sure thing".
You are going to lose, but if you can win 58% you are in the money.
It is a game of information - if you have no information you stay away.
Example - I really wanted to bet Houston Monday night but had zero info on San Diego so I had have the discipline to stay away. The Texans did not cover.
Guys will specialize in certain conferences so its easier to manage information rather than try to do it all.
Keep an eye out at lockerrompicks.com for new videos I am producing every week (hopefully 5 each week with free picks).