Haha--given that this entire process is like online dating, the fb friend request ignore is a great analogy
Along the lines above, what is the etiquette for cancelling--I have received my of my 'dream' interviews and want to cancel some of the safeties as they come in.
Is it ok to say I appreciate the offer, but am no longer interested in their program?[/QUOTE]
Ooooh...I wouldn't say this ^ (the latter). Although, I commend your honesty. I think it's important to stay honest, sincere, (as you have) but humble (like make sure busy PC's don't take your innocent comment the wrong way). I worry about how that sentence may come off and don't want you to get misunderstood as PD's/PC's do talk to each other. I think it would be safer to say:
"I am sincerely honored by your invitation to interview at your residency program. Although I had a strong interest in your program and wished I could interview, financial constraints (combined with a large volume of residency programs to interview at) have forced me to rethink my personal selection criteria. Unfortunately, I will not be able to make it to your insititution and hope that my open seat will allow other qualified applicants to interview at your program. Thank you again, I wish you a succsesful match season."
Something like that, but more you...just make sure you come off as sincere, honest and kind...(the stuff in brackets above you can take out). It's a hard task!
G'luck!
A