Are poker videos useful?

[betgo]

There seem to be a zillion of them of PXF and I have joined Cardrunners too. Started going through the ones by Bax.

Seems like you could spend a lot of time watching these. Now I am willing to spend a lot of time learning, since I made enough in one day for the year, and don't have to grind it out every day. However, I was wondering if it is worthwhile.

When I started playing MTTs, the only useful material was TPFAP, the NLHE chapeter in SS, and this board and some other similar online stuff. Now there is so much more material.

Also, which videos do people reccomend as the best for tourament players?