i would say go with wired, as you should always have a good connection.
i would say, if you really want to go with wireless make sure there isnt too many obsticles in the way of the signal (ie walls, doors etc...).
also, if you want to download or use internet / package heavy stuff go for wired, wireless usually loses a lot of packages.
and if you want wireless...... the more expensive the better it will be

that router is pretty cheap, therefore the wireless
may not perform too well...