Since microtransactions were cut off mere hours after it launched (and haven't come back as far as I know), it hasn't made a difference.
Those complaining about it making a difference on GTA Online are just trying to find something to complain about.
Avatar courtesy of Spazaz Man
"Come on, get up. You can do better than that."
Think you have what it takes to join my club? Prepare to wade through an ocean of blood