1.   And the financial payoff for vaccines is far less than with drugs to treat diseases.

2.   At any rate, environmentalists say, the financial payoff from being environmentally friendly is too small to make much of an impression on the corporate mind-set.

3.   But for many, the psychological benefits of investing in a small company are as rewarding as the financial payoff.

4.   But it matters little whether the financial payoff is direct or indirect.

5.   But over time, LEDs yield a financial payoff.

6.   Drug companies see no financial payoff in doing it commercially.

7.   There also is a financial payoff.

8.   There were no shady operators or allegations of financial payoffs.

9.   Their financial payoffs are far smaller and more elusive than those of tennis moms.