Quote - I think there is an oversaturation of the marketplace.  ... I get emails about every other week from a vendor with practically everything on sale for $2. 

There's definitely an oversaturation which is why the prices are low.  This is a perfect example of an economic formula dealing with supply and demand.  The greater the supply the lower the price.

Sales are also a good indicator of a possible decline in business.  The first thing that a vendor /business will do when they aren't making as much revenue as before is to throw a sale.  I know Daz3d is known for having big sales, but lately their sales have been in high gear.  I'll put it this way, I can't remember the last time Daz wasn't running a big sale promotion.