I worked for Karcher for many years. The market in commercial pressure washers developed into a price war.
They had two grades of dealer - those who sold & serviced - and those who just sold (Karcher engineers providing the warranty).
The 'sell & service' dealers got a slightly better discount (around 5%) but of course had to provide warranty cover. The 'sell only' dealer could afford to work on a smaller margin.
This lead to a huge amount of arguments. Customer buying from a 'sell only' dealer would take the machine back to a 'sell & service' dealer (assuming that like Ford, any dealer would cover warranty). The 'sell & service' dealer would tell the customer to take it back to where he bought it (not always politely).
When some of the bigger 'sell & service' started to bring in grey imports Karcher finally realised what a mess things were in - but completely ignored it. All they cared about was the margin when the machine left the factory, not what happened afterwards.