I think that each time a new domain extension is offered that it is merely for new business... by the domain authorities. We don't need new domains and there are still endless vacancies available for every name meaning when you start hyphenating (which actually makes most names more legible and meaningful).
When there was only .com, .net and .org most operators secured these to cover their butt. But registering for all domains today is a joke, so don't let that joke be on you... get real. How can mySite.com be affected by a site named mySite.banana?