Blizzard screwed so many long time loyal fans over when they moved the classic set out of Standard play. There is a good thread here from other unhappy players:
As someone who invested a lot of money into the game, and collected every pack, expansion, portrait set etc - I had a complete golden classic set. That investment was made worthless. I have no desire to play ‘Classic Mode’ - which was a lame attempt for Acti-Blizz to wriggle out of trying to provide any kind of compensation to us.
As many of you have said - I have now lost all interest in collecting and crafting gold cards. Since that decision was made I have boycotted Act-Blizz products and refuse to spend any more money on any of their content. Since February when I decided to quit paid play - I have saved nearly £300 in purchases. I still play - I love Hearthstone - but I will always be free-to-play from here on out.
The developers have proven over and over again that they care only about one thing: profit. They have no loyalty to their customers, and simply want to milk as much out of them as possible. They have become more and more greedy over time - and the new ‘Mercenary’ Mode was just the icing on the cake. Another mode I will not be spending a single £ on.
I think Acti-Blizz lost a lot of loyal customers when they made that decision - and then went on to lose what little respect they did have with the revelation of how the management team treat their employees. That has to speak volumes about the type of people that run this company now and where their morals and values stand.