Why use app annie to work out how things are going, when all you...

Why use app annie to work out how things are going, when all you have do is wait for revenue details in 12 days, so far its approx one tenth of one cent per day per download in revenue.(seems a low number to me)
anyway history so far says buy now sell before update,
so ramp it with app annie stats and watch it fall every second thursday
or forget about app annie and wait, if this thing is gonna rise and rise. there will plenty of time to jump in
when the revenue becomes respectable.
I know I come across as harsh but thats how I see it
have a good weekend all