People will buy anything these days if it says it's limited edition. FOMO is a powerful driver of sales.
"How can we sell a $130 pickup for $500?" "I've got it! We can put them in little cases like the guitars and call them a special edition."
"Good idea! The boys in accounting will LOVE this one. How many can we make?"
"We need to do a thousand to get a break on the little cases. Otherwise the cases will cost more than the pickups."
"Perfect!"