There are several vape stores in Cape Coral.
As stated earlier there is Vapin in the Cape.
There is also the following:
The Vape Store (2 Locations in the Cape)
1110 Del Prado Blvd
Cape Coral, Florida 33990
&
2717 Santa Barbara Blvd, #5
Cape Coral, Florida 33914
Naples Vapors (2 Locations near/in the cape)
1) Merchant's crossing strip mall
2) off of Pine Island Rd.
Vape Apes
Near Cape Coral Pkwy
I believe there is one or two more shops, but can't remember their names.
Hope these help you