Not too long ago (just over a year) I was one of the muchers. Desktop customization was a brand new concept to me. I was quickly growing to love it. I DL'd and DL'd to my heart's content until I reached my limit. Then I became a customer, then a subscriber.
Now, I'm sold out! 
But if I would have had to pay for each DL right off the bat, I wouldn't have. Period.
As the system is, it drew me in. I know that not everyone gets drawn in like I did.
Why not keep it the same, just reduce the limits?