This big pack of pick will save you money, as well as time - because you won't be looking for your pick all the time, cause you'll never run out of them, and you won't care where you've put the pick, cause they'll be everywhere (a few on your desk, a few in your pockets, a few in your wallet, a few in your band's place, a few in your guitar's bag, etc.)
I don't use this picks anymore, cause I switched to thicker ones.
If you like the flicky sound of the pick against the stings, these picks make that sound, cause they are thin and they bend against the sting.
Being so thin, they wear out quite quickly (another reason to buy this big pack).
The rough surface gives the pick a good grip even when your fingers get sweaty.