I personally do not believe that most re-sellers snap up stock to resell above retails prices. At least not at 15%. Re-selling is A LOT of work and huge hassle in the big scheme of things. In addition to having already paid for the item, most sellers take a LOSS with a sale of taxes and fees.
Re-selling an item such as a designer handbag means that the purchased item has been paid for. The seller must take photos and list the item on one or more resale sites. This is very tedious and time consuming. Once the item sells, they pay fees and then spend more time packing and shipping with insurance, which is quite costly. Sellers then wonder if the buyer will have have buyers remorse, complain about manufacturing issues, alignment or a plethora of other details a seller is not necessarily responsible for. Buyers often try to negotiate partial refunds or ask to return an item after "using/renting" it for a week. Returns are very costly for sellers, often resulting in up to an additional $100 loss.
The truth is, clients who maintain good relationships with their CSA and have an excessive purchase history with LV are often OFFERED rare/hard to find items the minute they arrive in the store. So although these items may STILL be obtainable, they are often sold to preferred clients first. LV SA's simply send a text to their preferred customer list and the bag will sell, resulting in very little time/effort on the part of the CSA. Preferred customer status = Buy More = Offered More. These clients often make purchases and decide something doesn't quite work for them. It may be capacity, organization, straps length, magnetic closure, interior fabric, etc. At this point, a return can be offensive to the CSA. In addition, LV keeps a very close eye and precise records on returns. Too many returns and you can be banned. Many people find that reselling is easier than damaging the relationship with their CSA or being watched for excessive returns.
I personally am grateful for re-sellers. I have found many rare and limited edition items in brand new condition through re-sellers. I am happy to have these pieces in my collection and grateful there was a way to obtain them. All I'm saying is don't be so quick to judge. If something isn't for you, it's OK for you to pass on it, but there may be someone else out there that is most grateful to have found it!