We get T's locally at $0.70/cuft from our supplier.
You could transfill from a T, and just have the shop top it up. Even returning the T with half the He left in it you still pay less then that quote. Realistically for 20/20 you could get way more than half the He out of a T transfilling.
I live in a small rented condo. There will be no T bottles in my LR. Landlord already is shocked at how much dive gear has taken over the LR.