Well, this does influence decisions where I'm doubting whether gaining a card is useful.
Usually, when you have a couple Silvers, more Silvers don't help that much. Let's say I have 2 Silvers already, haven't hit $5 and got $3 again, blegh. Often I would begrudgingly get another Silver, but in this case I might just get nothing and grab the 2 VP instead.
Also it might make your openings less straightforward.