You do recall Diablo 3 right? The MASSIVE refund waves that went out as people returned the game as they were so disappointed in it? And HS, while a fun cheap copy of MtG, is nowhere even close to its league
I personally prefer MtG over HS as well but I understand why people still prefer HS over MtG because it's fun, simple and easily accessible. HS also has the best way of solving the mana issue. If there's one thing I hate when playing MtG it's RNG lands.