I agree that effect will exist, but it remains to be seen when it will kick in. Ie, if there are big improvements left to be made then that network effect can

I agree that effect will exist, but it remains to be seen when it will kick in. Ie, if there are big improvements left to be made then that network effect can be overcome a few times by each 'big leap' change. Once the market matures though, you probably will see strong lock-in as you describe.