I love how this is progressing. One bit of feedback, I would love to see more legitimately "tiny" projects become available-- most of those sent out every week are $500-$2000 and require multiple week commitments. If there's a market for smaller projects or libraries that need work in the $100-$500 range, I would snap up those in my spare time. Obviously those kinds of projects have to exist first to be listed, so not much of a feature suggestion so much as a general desire :)
This has been an interesting issue -- I want to encourage small stuff like that (perhaps a quick icon/UX analysis or whatever) that's only a few hours of work. Though, I found when I had the min. budget at $100, I got a -lot- of low quality stuff. Setting the min to $500 has staved that off somewhat.
Many of those projects are poorly defined and ask too much work for the payment. The OP is asking for projects at a lower cost and lower time commitment, not devalued work.