The problem with this is that (AFAIK) there are no 100Mbps wifi routers around over here in the UK, so unless you want trailing cables or to have cables fitted professionally you're still only going to get approx 54 Mbps
And, finally, maybe one day people will understand that 'wireless' is not a kind of internet, and it does not even necessarily correlate to fast internet. (For a few years everyone I spent time with used 'wireless' to refer to any fast internet, and also presumed if it was wireless it was as fast as money could buy. GAHRGH!)
edit: hell, it's already an issue- Virgin offers 50Mbps, and wifi only offers it's (theoretical!) max of 54 when you've got excellent signal strength.