Burgundy swim briefs

[Torchwatch]

Some years ago when we were doing the colour of the month swim brief challenge I looked up burgandy men's swim briefs on Ebay and found none there.
As an experiment I looked them up every week for a couple of months and they started to appear. Last night I lookked them up again and found you can buy them but only from top brands at top prices.
Is Ebay really this manipulable? Are burgandy the best if most expensive swimwear colour to wear?