I'm in the camp that just because one company announces something doesn't mean the other company has to or is going to announce something to try and one up. And just because a company announces something just after the other was did doesn't mean it's always to one up the other (speaking towards the potter coaster comments some people had when it was announced). They are competitors but it doesn't mean they have to compete news for news 24/7.
Immediate one upmanship works for some things but it's not needed for everything. Ticket increases are about the only thing I expect for one to announce and another to follow.
I for one appreciate what each company has to offer and am content to soak up whatever information each company announces