The trouble with Neville, is he is already here, and as such, is worth keeping here a while longer.
His own performances, combined with the needs of the team will decide how often he starts, but if we had to buy a player, how much do you think it would cost to get one with those leadership qualities and experience, not to mention professionalism?
As long as he keeps fit, he is a good addition to the squad. We can only play eleven players at any one time, but we need 25 players, and Nev is also English (does he also count as home grown?).
I think the statistics regarding points played with v points without can be misleading, as let's be honest, no two opposition are the same, and it's more important to view a player over recent performances. I've noticed a few mistakes creeping in this season, but I tend to think a lot of fan opinion has to do with the fact that Neville isn't the most graceful of players, and can look awkward sometimes, but Ballet dancer or Street dancer, the guy is still dancing I guess.