How much will campus visits influence my admission chance?

<p>Okay, so I'm applying to 12 schools altogether and four of them are ivy league (Yale, Brown, Cornell, Columbia). We've been very busy and have tried to visit Yale and Brown (i've already visited Cornell) but have been unsuccessful. My father also developed pneumonia and it took him a while to recover so we couldn't travel when we had hoped. If I don't get the chance to visit these schools, how much will it influence my admissions chance? I know I am already a reach for these schools but I just wanted to know how significant of a factor it is.</p>

<p>ZERO. You have to have the goods…not a car.</p>