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 by Spazaz Man"When you're beaten down the most, when you're on the very edge of oblivion, you have to ask yourself: 'What left is there to fight for?' The answer is simple, really. You fight for yourself. You fight to survive. That's all life is. Fight to be the strongest, no matter what it takes. But always remember what it takes to get there." --The Devil Hunter