I don't know the market conditions today. I worked for several authorized retailers of name-brand 'Personal Computers' in the 1980's and 1990's. Back then, authorized computer resellers had to meet rigid sales quotas in dollars or units, or both, to keep their 'authorized dealer' status.
Many dealers also used to 'floorplan' inventory. The dealer would finance the inventory via a firm, such as General Electric Capital. Instead of tying up money in inventory, a dealer could pay a small percentage of the dealer cost to GE Capital for several months, in anticipation of selling the unit before the full amount was due, in 60 or 90 days. Some manufacturers offered dealers 'free' floorplan for 60 to 90 days, so the authorized dealer would have demo units of the latest models in the showroom at no cost.
If a dealer had a large inventory of unsold units (economic downturn, client cancels a large order, competitor introduces newer model) near the end of the floorplan period, the dealer might sell units through what was then known as the 'gray market', to independent (unauthorized) dealers, to individuals, via blind newspaper ads or mail-order -- IN CLEAR VIOLATION OF EXCLUSIVE DEALER AGREEMENTS -- because this was essentially before the commercial internet, AT or BELOW 'dealer cost', in order to keep inventory down and sales numbers up, and to generate the needed cash to pay the bill for the inventory, and keep meeting monthly and yearly sales quotas.