U usually get 1 alc scroll out of 5 t-hunts (when i do them,level dosent really matter)
I do a lot of level 2 and level 3 maps, they average 2 to 3 alacrities for each 5 maps.
I mostly do level 3 maps. Each map takes 10 to 15 min usually.
Level 2 maps take me less than 2 minutes, level 3 less than 5.
So 300x15x5 is what it takes in minutes to fill the whole book..
Thats alot, its 22500 minutes, or roughly 375 hours of nonestop play.
So to fill 7 books you will need 7x375 hours of none stop digging...
So to sum it up, to fill all books u need 2625 hours of game-play, or calculated in days, that gives 109 days.
Avarage player plays 2 hours a day..so thats effective 2625/2 or roughly around 1312.5 days of fun digging chests
These numbers are based on completely inaccurate assumptions.
So ya, ½ alacrity book would have been eought for even the avrage hording t-hunter, who never sells/use any alc scroll he gets.
My 7 books are certainly not all full but I do have over 500 total. I know, good grief, I already told ya all I was a hoarder.