Dunno about that, I picked up a 5* for one token the other day, but most of mine lately have been between 2 and 9 tokens for 5*. I rarely buy on the last or first days, but pick them up on a tanking season or if they reach 31 years old.
this transfer market is showing ****e for me these days and I have nothing to choose from, but just be patient and tank a season and build up.