by Le Anne Lindsay, Editor What a disappointment! I had been wanting to dine at Marc Vetri and Jeff Benjamin’s Osteria (640 North Broad Street) for over a year. (The year I’ve been in school and on unemployment) Finally, I was given a gift certificate to this much talked about and written about Trattoria. Still, I waited weeks for the right day and when I was in the proper mood. Now perhaps I shouldn’t have gone alone. I’ve always said, food loses 5-10% of it’s magic the moment you utter these two dismal little words to the hostess – “just one”. Waiters do a perfunctory job, knowing that 20% of…