Yeah but those packs can be used in multiple birds. I have an 8 pack 3S3700 set up in my N/P's P38, but the same packs in different combos, also run my Hangar 9 Camel and P40, a N/P P47, a Polks Hobby AC47, my EFLite Cub, my Double Blitz, and my new VQ P38, heck with the B25, $800.00 spent for packs now become low cost when spread out over all those birds.
$800.00 devided by 9 birds, heck I'm less then a hundred a bird in cost.

Yeah the wifey will believe that. But honey look how much I saved.