A good portion of my business is selling adoptables that are made on bases that I've purchased. [All of the ones I use for this are allowed to be used for adopts/sales/profits.] Sometimes I edit the base in a small way [I work with a mouse, not a tablet, so I'm limited to simple changes like piercings, jewelry, stockings, etc.], but most times I leave the base as-is and just color it.
I've never really considered the pricing of these adoptables in-depth. Almost all of my adoptables are Pay What You Want/PWYW where I set a minimum price that I'll accept. Usually I just slap on whatever price comes to mind that seems fair; there's no rhyme or reason to it. Generally I price mine between $3USD and $18USD minimums.
But anyways.
How do you guys price adopts? How much [if at all] do your prices differ between on- and off-base designs? Do you have any system/rules as to what you set prices as? Any advice about how I'm doing things?