Common, but there are a lot of suppliers that deeply frown on that. QBP won't drop ship in a majority of cases - they require that the item is shipped to the shop. The shop can then ship out. They have to have an actual shop that does service and sells bikes too if it is a QBP web front.
This industry has really done a lot of things to make it near impossible to do business in a cost effective way - all attempts to "protect" what is viewed as the traditional brick and mortar structure. It is all artificial market tampering and honestly - it never works. Those who want to find product for little can and do. They in fact just keep "local" guys from getting that business as now all of it basically comes in from the UK....of which they have no control over.