I'm afraid the previous answers are probably correct, unless you and your friend did discuss the price, at least in general terms. Also $100 is too high for the quilting, IMHO, since a good longarmer usually charges .015-.035 per square inch, and this would put your quilting over the top. If it looks like this could turn into an ugly (or uncomfortable) situation, perhaps you could trade services with your friend rather than exchange money.