They are relying on their customers willingness to gamble to secure their income. I dislike the model (and question the ethics) and will not play ball.
I spent £45 so far and have had mixed success for the spend. I got 1 4* out of 1 of the £20 spends, but managed 2 4* out of the other. Problem is, my team is now quite a refined set of 4* and have decent backup… it means diminishing returns for any subsequent spend.
Of course they’ll like me to spend ever higher amounts to defeat the RNG to pull the few rare heroes that are better than my current stable, but I like to think I’m not their kind of sucker.
I feel spend a moderate amount (£50 or less) EARLY to assemble a decent team then do not reward their (SG’s) tactics further after that. Refuse to spend further. If they start introducing direct results for spend then I’ll be far more tempted.
(Some would argue this would be pay to win. It’s a fallacious argument. It’s ALREADY pay to win… but just needing to pay a whole lot more to win than otherwise).