It's a free to play game. The economy has to be tilted towards "the house" to make it work. As for "cashing out," I'm not familiar with any f2p digital game that allows for cashing out.
There are ways to tilt it torwads the house well still letting you trade and sell stuff(see steam). I'm sure there are (wasn't there some fps going around where you could by and sell equipment?) and even if there aren't is that a reason to not do it?
I wouldn't use blizzards post as a reason as it's kind of tottally bullshit. Do you really expect the company that made that choice, to only make points that can stand on their own?
1. Blizzards system only make it easier to get cards if you are building one deck, if you want to be able to adapt to the meta or play mutlitple decks (basically to be competitive) you are going to need most of the cards which means you're going to have to open far more packs than if you could trade.
This is espiscally true as Blizzard can easily change cards after they're printed to correct their power, meaning the vaule of the cards would be in a closer range than in a CCG like magic.
2. Just because you allow for trades doesn't mean that you can't have a sink in your econnomy if cards could simply be scrapped for a few gold or they keep the dust crafting system but instead of crafting cards you crafted "hats" or access to something it would keep the vaule of cards from bottoming out.
3. The argument that is quicker to get cards is rather fallacious, sure once you grind for enough cards it's easy to exchange them, but your going to spend much more time grinding when the trades are always 4:1.
Also if the simply had a market you'd be able change cards into gold and back almost as fast.
In addition to everything they talk about in that post, I like earning my cards myself. I don't like feeling like I'm at a disadvantage if I don't frequent trading forums, making sure I have "friends" in high places and being part of "elite" communities, and cheat and/or game the system by multi-accounting and other means
You're already at a disadvantage if you're not spending hundreds of dollars or hundred of hours gridning, I'm not seeing how trading puts you at more of a disadvantage than that. Basically you have a system now where you get ripped off in every trade.
because real money trade sucks. Sucks hard.
So if you decide you no longer want to play the game it's much better to get nothing than to get money??
I really recommend not buying card packs, but instead doing the arena. Even if you lose every single game, you still come out with a card pack and 25+ gold/dust or an extra card. 2-3 wins and you're basically guaranteed to break even. And it places you on the exact same playing field as everyone else. And the more you'll play, the better you'll get. If you can get to 7 wins, you'll get your entire buyin back, plus lots of other rewards.
I'd actully recommend against the arena unless you have alot of free time or particully enjoy it, well it may be a more effecient use of your gold spending an hour to be up 25 gold is not an effecient use of time.