Why psd – tutorials?

Why did I join the community psd tutorials? I signed up in this community, because I already knew this webportal and found on this site many tips about graphics, photography and design. I also own a psd- tutorials dvd, with many presets. Now, while thinking about it I don´t understand why I did not join earlier. As a guest you can read the posts in the forum and see tutorials only limited. As a member you can download tutorials and watch them with supporting images and videos.