I disagree, if the OP can afford to visit the area, then he or she should. I'm not advocating for stalking students or trying to obtain brownie points before the interview, but if you are turned off by the campus, city, whatever, then it may help make your decision.
The whole equity notion of making the interviews virtual was always a bad idea if you ask me. As I have said, the very same people they think they are helping are actually hurting.....virtual interviews can never take the place of in-person where for example, those coming from lower tiered programs that don't necessarily have the numbers of a top applicant, can really impress the interviewers in a way that would not have occurred behind a computer screen and thus make them more competitive. Some people just feel award behind a screen where those very same people given the chance for an in-person interview would really impress. Let us not forget that the virtual interview process, especially for the competitive fields will also likely result in your top applicants holding onto more of them and making less available for others that may have come during 2nd rounds.
I get the whole money issue, but if you made it this far and don't have the means, you likely borrowed money and the extra costs associated with the travel for interviews/city visit would be minimal when you match, hopefully at one of your top programs.