It’s very easy to forget the past, and the mistakes you made. Just keeping up is difficult, and sometimes the situation changes enough that you might want to revisit something you tried before, something that failed. Maybe it’s just worth giving it another try in the hope that there will be a different result.
And, no, I won’t consider that old saw that doing the same thing over and over again and expecting a different result is a classic definition of insanity.
Back in the early days of the Mac, Apple was urged to license the operating system. Do what Microsoft does, they said, and thus earn license fees from all those companies who will license the OS and expand the platform. After all, giving customers a wider choice of hardware has to help build a larger user base.