This week, I got more than a few emails from friends and family members flummoxed by my trip to Art Basel. "You're where???" exclaimed my mother, halfway believing I'd temporarily left my annual summer sojourn in Berlin to double back to Miami for three days. That's because while Sight Unseen has been a longtime devotee of the Floridian version of the international design and art fair — stretching back to our I.D. magazine days — we've never managed to make it to the Swiss edition, which is…