I'm surprised people think it has to be either inflation or materials for the price increase. Something as complex as a business usually is multifactoral.
Inflation exist because factories close, materials get made different, price increases and laws change to increase wage; so things are always changing which will effect the cost of premium products.
During the remastered release Jordan brand and even Tinker said they will try their best to bring back better quality and shape to retros but its hard because the factories they used in the 80s and 90s have closed.
Also Jordan brand and Nike dont make the leather themselves, they buy from other companies so their cost is directly related to the companies they outsource from. The Jordan xx8 is an example of how outsourcing effects the price becuase the zipper and outer was outsourced and that shoe costed 250. The xx9 used new flyweave and was less because they didnt have to outsource as much.
From a material and tech standpoint, people that complain that retros shouldnt cost as much new basketball shoes because of "new tech" don't know what they are balling in. Many retros have the same tech like zoom as in current products like LeBrons, Kobes, Kyries. They might shape it different but its the same tech. Plus hyperfuse found in many current models is way less expensive to make then using raw materials that require stitching.
When foams first came out they were 200 or something which was crazy for the time and the reason was because the mold was different from anything nike ever made. Foams are still one of the most expensive basketball shoes. Kobe 9 and Jordan xx8 both examples of how new molds make initial price hike but then price goes down because they get the necessary machines and material is inexpensive.
So the 220 price tag is from Nike buying better materials and getting a handcrafted shoe that cost more to make. True blues might not have the best material out of the remastered series but as a whole the remastered series has given us way better quality Jordans then the Jordans that have dropped in previous years. And comparing retros to new shoes is unfair because probably 60 of the new nike shoes are made by machines and with retros probably 60 percent is handmade.