how cold does the mug get? if its making a freezing cold mug, I wouldn't want one. frosty mugs are good for drinking BMC because there's no flavor or aroma to lose from drinking it too cold.
good beer shouldn't be ice cold any more than a merlot should be served cold. great way to ruin a good beverage.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10