Looking for an amazing telephone headset (2.5mm)... Where?

[DonBlack]

I'm looking to buy a headset for my telephone that provides excellent sound and is reliably built. I seem to go through the $50 Plantronics ones from Staples in a couple of months. I'm willing to spend money to get a quality product but don't know where to start. HelloDirect's prices seem off the wall and I don't really trust their customer service either. Any ideas? Thanks.