The table average should never really affect your table decision. It doesn't tell much about the exact texture of the table. It is nice to glance at and CHECK tables that have meh averages...but the average ITSELF shouldn't make you leave.

Consider this 6max table:
SB: 3/1
BB: 11/10
UTG: 11/10
MP: 41/39
CO: 44/40
BU (Hero): 22/20

Are we ever leaving this table, EVER? What's the table average VPIP/PFR?