I'm in a bit of weird situation with this one, so maybe some people here can help me proceed in the most respectful, polite way.
Anyhow, I was accepted to Brown off the waitlist (hooray!), as well as a couple other schools. For whatever reason it took a while for me to get the official acceptance letter from Brown, so by the time I started thinking about visiting the school, the soonest I could do so (without missing finals or tickets being extremely expensive) was the beginning of April. I bought tickets and arranged a visit, and then sometime afterwards other schools began contacting me to see if I had given any thought to their offer. Ideally, I would have liked to visit those schools and Brown and then make a decision afterwards. However, I realized that since I was only visiting Brown in April, I would only be able to make my decision within a week from the April 15th deadline. I'm pretty sure I want to go to Brown, and I felt like waiting so late would be unfair to those other schools and the people on their waitlists, so I officially accepted Brown's offer.
Now here's the weird part. I've still got a visit to the school lined up (which I am looking forward to). Is it distasteful to visit a school (on their dime) if you've gone and already accepted their offer? Should I tell the faculty that I've accepted their offer before/while I visit? On the one hand, it might make for a more meaningful visit; I can speak with profs. I want to work with on specifics. On the other hand, what is the point of visiting if I'm going to go there anyhow?
How do I deal with this tactfully? Thanks.