OK just ran some new numbers. This is for large volume.
Using the best available price and product available from each location, I calculated for 4 sprayable gallons. I used Xylene from Home Depot @ 18.98 for my thinner pricing. However Plasti Dip recommends VM&P and Taluene for a thinner.
Home Depot - $163.60 - Must buy 18 of the 14.5 cans. Limited colors
Lowes - 161.80 - Must buy 18 of the 14.5 cans. Limited colors
DYC - $232.00 + $17 shipping - All Colors - Pre Mixed
Awarehousefull - $153.86 + $18 shipping - All Colors
NOTE - I did not apply any discounts which may be available for bulk purchases.
If you are doing gallons or more the pricing at Awharehousefull is fantastic for pricing. Even with shipping they are cheeper then Home Depos 45 cans, yes thats 45 of the 14.4 oz cans.