As others have noted, there should be a distinction between collectible and randomly packaged collectible. For me, this is a simple issue.
I only have so much money to spend on my hobby. About 95% of my budget goes into books and/or PDF's these days. I simply don't have the fundage for a randomly collectible game. I have a good pile of figures from the early D&D sets and an absolutely huge pile of counters.
Before I got into MageKnight, it was Warhammer and Warhammer 40K. I've also got scads of Legions of Steel, old Ral Partha figs, Silent Death, and tons of other unpainted pewter lying around here in a box somewhere that I just don't have time to paint. When D&D came out as a CMG, I got into it for figures for my RPG that I don't have to paint. Yay.
Then I found out that any of the truly desirable or useful figs are usually stupid-rare. In other words, there are rares that are more "rare" than others. I have yet to SEE a Dire Wolf in person, for example. If you got one you are lucky. I have more Destrechans than I know what to do with. Lucky they seem to be a re-sculpt of the Dire Wolf, making them useful as proxies.
Here's what it boils down to- I think WotC should start selling packages of minis that are clearly labeled as to their contents. Dump the stock market system, that in the end, WotC doesn't really profit from, anyway. Save the randomly collectible mombo jombo for Magic:the Gathering. I would pay pewter prices for plastic figs again if I knew what I was getting.
Heck, for what it's worth they could sell a Fantastic Locations map with say, a Behir, a Blue Dragon, some kobolds, a few other random animals and six basic adventurer figures for say $49.99, and they'd probably sell a plenty of them. I'd buy that. It's better than trying to buy a dozen Legends boosters at $19.95 each and a dozen other boosters at $12.95 each just to end up with a pile of crap I don't want and can't use. Or worse, go on individual web sites and shell out $50 for the Behir alone.
In terms of the minis gamers, do army packs. Sell 12 kobold skirmishers for $12.99 per pack. Sell the kobold shaman for $4.99 individually. Sell the uber-hulking kobold barbarian shadow dancer for $6.99. I can't believe WotC has learned nothing from GW over the years. They could streamline production and make more money if gamers knew what they were getting. Think how much time and money could be saved by NOT producing the dire toad and fungus man minis that were a dime a dozen and packing them in random boosters.
IMO, WotC has dropped the ball on this from day one. They kept dropping the ball with Axis & Allies and Star Wars Minis. I refuse to buy any more randomly packaged anything. I likewise refuse to go online for any more singles. I may pick up the dragons when they come out because I will know what I'm getting. The only way WotC will learn anything from the fans is when their marketing department finally informs them that their collectible miniatures plan sucks. Vote with your dollars, or lack thereof.