Producers have struggled for years to sell alcohol compliantly. Traditional compliance services charge high monthly fees while low cost solutions have limited features that don't solve the whole problem. This has resulted in many producers limiting themselves to sell within their own state or a small handful of states. This definitely limits their success.
You can choose to pass these on to the consumer, absorb them or use a combination of these approaches. Packaging fees can also be added to orders.
Transfers are made twice per month.