Don't bother … he is impervious to such logic.
I mean … sure there are 'pretty' games, and fun strategy games. But aside from old-ish ports and games from Jeff Vogel, there are no RPGs yet that really compete on the level of what we here are expecting.
And it is *not* due to hardware - the iPad 4 is faster in most ways than the XBOX360 (and slower in some others) and close to the PS3, and is also faster than pretty much any non-gaming laptop from ~2008. With proper development and optimization, there is no reason we couldn't see much more in terms of deep gaming experiences. But as DArtagnan and I have discussed, until someoen develops a new paradigm for RPGs on tablets, they will all be ports.
Heck, it is more powerful than the HP Elitebook 2570p I'm typing this on … and this thing managed Bioshock Infinite quite well!