All areas of technology move very fast, and if you are not in a position to reinvent the way you market or run your business, and your product, there comes a time to hand things over to "fresh eyes" , a new team, or get out.
There will always be opportunities. The problem is being able to see them and act on them especially after 10 or so years of success. Or indeed, is it sufficiently rewarding.
@ travelin cat .... 100% agree , " thanks for all the fish "