You really can't beat Afternic. They're partnered with 8 out of the top 10 registrars. Sure, your ultra premium one-word domain gets enough inquiries from direct traffic, but for average domains, there's a good chance the buyer found that domain through search queries with a partnered registrar.
well a possible sale in the works for mid xxxx US right now, could be one of those smooth ones, agreed on price quickly and moving through escrow now. we'll see. on a .ca domain.
another inquiry on a different .ca in the past month, but it's one of my best and after saying my range is xx,xxx haven't heard back, but it's one where I don't care unless I get a strong price.