Rim Shot;

 

Bostonians will spend a cold night on Causeway Street to buy play-off tickets for their Celtics, but there were a lot of empty seats when the team went public in December. At $18.50 per unit, or 34 times earnings, the price of admission was just too high -- especially considering the ages of the starting five. The $48.1-million issue sold out, all right, but mainly to investors outside New England. Now all they need is the next Larry Bird.