Should Sachin Tendulker play T20's ?

i am a big fan of Sachin. I feel he is wasting his body by playing in the T20 tournaments like IPL . What is more important is that he should be fit for test matches. A true cricketer and a true cricket fan judges a player on the basis of his performances in tests. He can play in the ODI's as he wants to play in the world cup and hopefully make us win. But I value tests more than anything. Ricky Ponting is fit enough to play for another 5 years it seems. I and most of Sachin's fans would not like to see Ricky overtake Sachin. Ricky very wisely doesn't waste his body on worthless T20's. These players like Sachin and Ricky are too good for the T20's. T20 is basically meant for dashers. Look what T20 has done to players like Rohit Sharma and Ishant Sharma. i like the fun of the IPL but it should rather take place only once a year and certainly the number of T20's has to be reduced. But i don't think BCCI will think like that. They are putting revenue above quality of cricket and unfortunately this IPL will ruin many test level players.