I've bought plenty of tuts in my time but ONLY if they are from a recognised vendor, such as Gnomon or DT. I did buy trhe blendernewbies compilation DVD when I first started out and was using blender- but all the tuts were viewable in web quality for free; I knew the standard of the tuts and just wanted the better video…
As others have said, and as a fellow blender user I have to say this, get back to the drawingboard, your focus should be improving atm. the blender community, and especially blenderartists have quite a skewed standard, and some days I wish polycount could blow its standard load all over it. set your standard at the…