sounds nice man, I think the sound is very cohesive throughout. Planning on copping it soon.
I like the $3 price point; like others were saying, the $5 price point is pretty common around bandcamp and such sites, so you might be differentiating yourself with a somewhat lower price if people are used to choosing between Free vs. $5-$10.
And the 5th track on there, Heavyweights, has some instrument that really reminds me of one of my beats, I can't listen to it without hearing mine mixed in... here's the track if your curious: