TrueFire has on two occasions over the past 3 years offered members the opportunity to purchase access and lifetime download rights to their entire song library (currently ~425 songs) and every future song that they will ever publish - for $99. I've not yet taken advantage of those offers but it's tempting. In any case, as W3 stated, members can download entire song tutorials (including tabbed sheet music) for $5 or less. I've seen popular songs go for as little as $1.25.