I'd have to say no... I agree with what was said here about Diversity. I hadn't really thought about that until I read it. But, it's very true. Open access to resources like GWW is literally what makes it so useful.

Unless those sites can offer some sort of resource that's not readily available, possibly then, a premium may be warranted.

Let GWW be free Lee! Hehe... It's perfect this way, LOL! :-)

BrianDN