If 'enough' people are buying WoTC products, why does it at least seem that things keep getting shaken up?
Publicity?
Perhaps WotC's marketing droids subscribes to the notion of:
"There is no such thing as bad publicity".
If 'enough' people are buying WoTC products, why does it at least seem that things keep getting shaken up?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.