The allonge must be permanently affixed to the related note and must clearly identify the note by referencing at least the name of the borrower(s), the date of the note, the amount of the note, and the address of the security property. The note must clearly reference the attached allonge.
Due to the limited supply, the costs of Air Yeezys today on eBay will often be between $200 to $600 for a slightly-used pair, but keep in mind that this price is often for replicas. According to SneakerNews.com, the Red October version retailed for $245 upon release.
When new, the LS model had a starting price of $43,600. The LT model was priced from $47,640, while the top-of-the-line Tahoe LTZ started at $56,255. As of June 2014, a briefly used LS model is worth about $36,700, a LT should go for around $41,965, and an LTZ will set you back approximately $49,835.