I have no problem with that strategy... it's not for me, but if I were to do something like that, I'd take three numbers at random and do a dollar tri box for each race.(costs $6 per race)  With this bet you are at least investing less and have a better chance at a large payout.  (My brother and I have actually done this each of the past two Breeder's Cup day just for fun.  Please note, it HAS NOT come in yet!! 

 )