Yeah, I'm thinking the values should maybe be a little lower for some of them. I think the official Pathfinder Society play has some examples that I could probably adapt...
They use things called Prestige Points that you can use to buy things. After a typical session (which should take 4 hours live), you get either 1 or 2 points, depending on how well you've done. Since this is a forum and things take rather longer, I might say that 100 points of activity score is the same as one Prestige point.
Anyway, the list they use, being converted into activity score is:
+4 on any one skill check............................100 AS
Dispel Magic.............................................100 AS
Lesser Restoration.....................................100 AS
Remove Blind/Deaf/Curse/Disease/Paralyse......100 AS
Free Purchase up to 150 gp.........................100 AS
Atonement...............................................200 AS (800 AS to restore class abilities)
Break enchantment....................................200 AS
Greater Dispel Magic...................................200 AS
Neutralise Poison........................................200 AS
Restoration................................................200 AS (400 AS to remove negative level)
Free Purchase up to 750 gp..........................200 AS
Regenerate................................................300 AS
Have your body recovered by rescue team......500 AS
Raise Dead................................................1,600 AS
Greater Restoration.....................................1,600 AS
Resurrection..............................................3,200 AS
True Resurrection.......................................7,700 AS
And just to be mean, they say it costs an aditional 500 AS if you buy it outside a town of population 5,000 or greater.
I think, based on this, that perhaps 50 AS gets you a cure light wounds, replenishes a lv 1 spell slot or gives +1 on any check (all regardless of where you are).
Sound more balanced?