Naw, what killed the Baseball Card Industry, because lets face it, it was always about Baseball and not "Sports" cards, was saturation + nickel and diming the customer right out of the hobby. It grew to the point of smothering the traditional steady line to complete with too many versions of the same product (Ultra, Stadium Club, Studio, etc.). I was the target age during the Baseball card craze/bubble and back then you could walk into any Basesball Card shop and purchase whatever current line of card pack you wanted because they were all in stock and plentiful; unlike LEGO today where you snooze you lose if the set even arrives at all in your local retailer. Add in the ever increasing cost, scammers - I'm looking at you Donruss wax paper iron guy - and charging the fan for autographs, which is ludicrous and what did they think would happen? Of course it failed. Parents got fed up with wasting money and collectors grew up or grew tired of the impossible chase. So far LEGO is much smarter, not to mention they are 1 of 1 in the game which allows them total control and continued viability provided they don't do something stupid.
Many like to compare Mr. Gold to "chase" cards. I say they're wrong. The key difference is that brilliantly, you can feel the pack for Mr. Gold (and others). If you don't feel him, you move on until you do. Unlike with the Baseball cards there's no financial loss, only time. In fact, you walk away with an increased understanding/knowledge of the product through tactile feedback as well as a strong sense of investment in the genre as you've "become so good at figuring out what's in the packs!" Kids love that last part.
So you don't find Mr. Gold...now you/re mad at LEGO for putting you through this turmoil of excitement and despair. You go on the internet and give them a good what for publicly and then you lie to yourself about how cheap he will one day become because that's how you were burned by Topps and creeper wax pack iron guy 25 years ago. That's fine, it's your right, but where will you be when the next Series comes out? Ahhh! That's right...you're a pro feeler now...you've become so familiar with the product that it takes you less and less time to apply your new tactile super powers to that new set of smiling minifigure images starring back at you while you crinkle away at those glossy packs. Oh yeah, you're hooked and you love it. In the back of your mind you think about your collection and how someday you may find the disposable income, or flip enough sets to justify the cost of completion with that elusive Mr. Gold. Those forgotten feelings of despair creep back, but by now you've already thought of the special case you will keep him in for display since the cost was so high and your justification mind washes away the despair...
...well played LEGO...well played.