I guess regardless of whether they are 8k or 13k it is stupid money for a set but it wouldn’t surprise. In 2015 I nearly bought an Audi RS5 and was told the 19 inch wheels were £1200 each. Pretty sure the newer model that came out went to 20s and could easily of been £1500 each in 2018.My us dealer told me it’s $8k for a set of wheels. But he might have been spit balling he didn’t get a quote from parts
Either way the thing we need to consider is dealers and owners looking to buy used are likely to want a set of OEM wheels included or it will affect the price.
Personally now I’m on Aerie V2s mine will be cleaned, tyres rubber treated, wrapped in HD tyre clung-film and stacked in my office store room. Not a chance will I sell them just in case.