Ummm well......lets break it down just a really basic recipe 20% flavoring, 24mg nic, all PG (using Levy's Nic and PG: perfumers flavoring fro price referencing)
1. 30ml bottle.... 0.60
2. Nic...7.2ml= 4.54
3. PG....16.8= 0.67
4. Flavoring....= 1.52
Total = 6.73 for a 30ml bottle
Price could be cheaper if you
buy in Bulk.
Where DIY is expensive..
The experimenting and wasting good stuff cause you messed it up....and your pretty much guaranteed to make some nasty stuff sometimes.
and trying new flavors out...only to never touch them again.
It's like eating out VS cooking at home.....But you got to fracture in that you dont really know how to cook so there will be burnt meals, and you dont have any of the supplies to begin with.