Nice that the fourth goal against West Ham has been credited to him, as my bet on 2 or more goals is now being paid out.
In terms of valuing Suarez, hopefully it won't come to having to sell him, but you have to factor in the asking price rather than the players value. I think Bale was excellent last season and he attracted a fee of £80m, approx. I seem to remember Levy stating that the fee wasn't just for the player's ability, but also included a premium, if you will, for the effect that losing such a vital player would have on Spurs.
Taking that into account, and form too, I think Suarez was equal to Bale last season, and his form this season has pushed him ahead of Bale in terms of ability. Look at how Spurs are missing Bale, and if you factor that into how much we would miss Suarez if he were to ever leave, and I think a fee in excess of the £80m paid for Bale is not unrealistic. Maybe somewhere around the £95-100m mark.