I PPT twice every week like clock work, and my 20 trill bank capacity thanks me for it.
Not all of my PPT's are used fully as many are used and removed immediately but with an increase of over
"10% increase to original bank size (for you, as of last turn, this is an increase of 79,824,630,027 "
Its worth it to me

*Edit*
I clicked the 200+ option
**Edit Again**
Seems I'm not alone
I did...
Less than 3 PPTs, as I'm new 0% 0% [ 0 ]
Between 3 and 5 PPTs, as I dont like PPTs 4% 4% [ 2 ]
Between 5 and 10 2% 2% [ 1 ]
Between 10 and 20 4% 4% [ 2 ]
Between 20 and 40 12% 12% [ 6 ]
Between 40 and 75 24% 24% [ 12 ]
Between 75 and 125 22% 22% [ 11 ]
Between 125 and 200 6% 6% [ 3 ]
Over 200 PPTs!!! 24% 24% [ 12 ] x