To get the internet in the 1st place Eric as I don't plan on paying out for a landline & connection for my 8 month stay, Turkcell want a minimum of a 12 month contract!
Having done even more research I know understand that the difference is in the date the technology was introduced & the speed & as such all 11n routers will cog down to 11g if necessary so I have no fear which one I buy, phew, you can teach an old dog new tricks you know!