I find it odd that dealers can refuse to sell what Stihl is marketing.
In this case it isn't the dealers, but rather the distributor, which acts in concert with the corporate office in Virginia Beach. Stihl Northwest has decided against carrying certain products as well in the past. The decisions are made both by the lead Sales Rep and the Sales and Marketing staff at head quarters.
The individual dealers though, don't have to stock everything in the catalog. They do have the ability to order anything though.