I'll give you $10 to play in a tournament. You have two choices:
Tournament #1 is an ordinary MTT.
Tournament #2 starts with many of the players having larger starting stacks than yours. Then, later, many of the players will have more chips added to their stacks.
Which one do you choose?
If you are playing a tournament that allows players to rebuy to double their stack at the start of the tournament and has add-ons, then you are playing the second tournament.
I see people doing this frequently, and I don't know what they are thinking. Either take the rebuy and add-on, or play a different game.
P.S. I am not actually giving any of you $10.