Blizzard Entertainment stop linking ingame content on expensive and rare collectors Editions or blizzcon tickets

Its worse than anything like dlc on consoles. At least on consoles you can buy dlc when ever you want. With blizzard you need to buy expensive collectors edition which are very limited or blizzcon tickets which are availably for a short period of time. Blizzard has to remove these content in the future or make them availably all the time by online distribution. Its annoying and ruins the fun. Whats the point in playing the games, unlocking things if you can buy very very rare extras for a lot of money which you can never get once if you missed these???