Formats were pretty much the same in price at first. Then VHS started to benefit from network effects and the economy of scale.
> Betamax also had to either take over or die, Linux is not in that situation, If it doesn't take over, it can keep going and continue to grow slowly.
No it can't. Network effects make sure that it's very very hard to regain a lost market.
Basically, your only hope is to capture a new market and then grow from it into other markets. Or live within a small niche.