Fee isn't the issue, his wages are. You might end up with a £70k+ a week bench player pushing 30 with little to no resale value. There are more interesting options out there, at least in my opinion. Krychowiak at Sevilla has been awesome this season. He's build like a tank, 25, great defensively and a decent passer. La Liga is where it's at right now. Hell, if Wenger want more of a versatile player, he could even go for someone like Parejo from Valencia. Been really impressed with him this season. He's a bit more Wilshere than Arteta though.