I recently sold 10 domains to the same buyer, having approached him for one of my names. While he was not interested in the name I offered, he bought 10 other names from my portfolio and the deal went on smooth, with a price better than I expected. The best part was, I sold one and then offered him the other names individually priced, and a discounted price as a lot. I think building relation with the leads is very important. I couldn't imagine selling 10 names to the same buyer. This was the second time I sold multiple names to the same buyer and it has only reaffirmed my trust into building connects. Follow up definitely helped. Had I not followed up with him, there wouldn't have been one sale even.