I've only recently jumped into this line myself, mostly 'cause I've been able to score most of the OT busts for only about $30 each (shipped). So with the increased edition sizes pushing the costs down a bit, it made the overall line more attractive (affordable) to me, so I hopped on the bandwagon too.
Of course, going back and picking up those 2,500 one's Bob mentioned, like the Fett and Vader (I presume), is gonna be extremely challenging. Pretty concerned about those, as they're both usually running in the $200+ range. Oh well. Someday...
Not to mention that blasted GG Christmas gift of the Silver/Gold Sandtrooper a couple weeks ago...
I just like how these Busts look though, and that they're pretty affordable now. Don't care about the values myself, though I know there are those who do, so I can see how this line may be taking a dive in their view... To each their own.