I don't think it correlates much with cost. I interned at one of the major BT companies for 6 months. I did a bunch of testing and characterization of the conne

I don't think it correlates much with cost. I interned at one of the major BT companies for 6 months. I did a bunch of testing and characterization of the connection process to troubleshoot issues for our customers. What I found was that small changes to settings that consumers don't even realize exist would cause connection times to vary tremendously. There are dozens of parameters that control the interaction between two bluetooth devices. Virtually none of them are configurable, and they all have to line up just right on both ends of the connection for things to work efficiently. It's somewhat amazing to me that the protocol works at all.