Sorry, eclark, but you're trying to address the wrong side of the equation.  You need to address the brokerage houses, NOT the vendors.  It is the brokerage house which controls what content goes in the store, not the vendors.  You, as a creator, can make stuff all day long, but if the brokerages won't put the products IN the store, well, then your potential customers will just never see it.

Everyone wants to beat up on vendors, but they are simply striking out at the wrong side of the equation.

Let's take this product as an example:  http://www.renderosity.com/mod/bcs/i13-sexy-14/110170/

There's 4 "vendors" on that product - and I use the quotes because RenderFX is really just Renderosity taking another chunk of money off a product.  Not a real vendor, just RO being more greedy that it already is.

So, here's how it breaks down:

Product is listed on sale at $6.74

RO takes 50% right off the top just for putting it in the store. $3.37 left for the vendors to split

And the RO RenderFX takes another 10% off the top. $2.69 left for the vendors to split.

So, the 3 remaining vendors get to split that $2.69 - assuming an even split, that's a whopping $0.89 for each of them.

It's not the vendors who are making a chunk of change on ANYTHING in the brokerage houses.

It is the brokerage house that controls what goes in the store, not the VENDORS.  So, quit beating up on the vendors and try to start a conversation with the blocking agent if you want to see diversity of products.