If freefloating is so good then why don't the top rifle makers do it?

Savage= excellent out of box accuracy
Win and Rem= very respectable accuracy
Marlin Mr7(bolt gun) great accuracy, until I started playing with it.
Interarms= Good accuracy

If these companies found that freefloating was such a big advantage, why don't they do it? Surely people would pay a higher price for sub MOA accuracy.