unfortunately every TCG has this problem, even yu-gi-oh which is, let's be honest, also a childrens TCG. demand for product far outstretches the availablility, and if TPCi made those cards readily available, no-one would buy the booster packs anymore. I agree that it's expensive, and can get very ridiculous; however if you take all the cards people actually want and start putting them in theme decks, it will make buying packs worthless and pokemon lose out on more money than issuing the card singally.
I think there is a way to have a happy medium. It doesn't make business sense that the online card companies are making that much profit that TCPi should/could be getting.
For example: I read that the upcoming Zekrom / Reshiram Battle decks will come with 2 Catchers (although I despise the card and think it's hurting the game) in the Theme Deck. Is it different in Japan that they get theme decks with highly sought after cards as a matter of course and if so why? What makes Pokemon different over there than here? Why will Catcher be pulled if/when those decks are released everywhere else? Is TCPi working in collusion with the online card companies or are they supposed to making the game grow?
Seems to me Pokemon Japan knows that all players having access to all cards (AT SOME POINT) keeps the game on a more level playing field than only having the top in the hands of the highest bidders or those with the most money.
And, just as in Japan, it wouldn't negate Booster Packs, you could still buy them since the cards that turn out to be highly sought after would be timed delayed. It's the same rationale for Pre-Releases as opposed to waiting for the cards to go on sale in store. Many people like to get stuff first so they go to pre-releases, others wait until the packs are available in stores or purchase on line once they see what they want to play.
I don't think selling a 4 card pack of Reshirams a month after they go on sale in Booster packs would hurt TCPi, in fact, it would help keep the profits in house as opposed to in the hands Troll and Toad or whoever. And, the on line companies would still have a month (or so) to charge as much as the market will bear until TCPi releases the 4 card packs. And maybe a different card rises to the top. eBay merchants would still be able to rake folks over the coals for initially hard to find items as well.
Everyone wins: the people who like getting Booster packs could still pull those rare cards before they are generally available, the merchants could still charge out the wahzoo for hard to find cards, and TCPi gets to make more money while insuring the continued growth of the game through "Premiere Card Pack" sales.