Another "Pro" Idea
I really do not have a problem with the Pro accounts, instructables is a business, and businesses need money to survive. I would however like to suggest an idea borrowed from i-hacked.com. Over at i-hacked, the webmaster allows users to submit a how-to OR pay to become a member.
Why not reward the users who make/made instructables what it is. I think instructables should allow users that submit a certain number of "high quality" instructables to become Pro members. These members have contributed as much or more than $3 per month, just by a different means.
What do you guys think?