Do the churches that have day camp offer more than the 1 week of camp that you're interested in? I've always assumed that registration fees (especially ones that seem high) are sort of put in place to encourage you to participate in multiple weeks/sessions that are offered. Or is there a separate registration fee for each session at the ones you're looking at? (I understand that you're talking about one session at each of 3 different locations, I was just asking how/if it would work if you did multiple sessions at one location.)
A $40 reg fee on $110 tuition does seem high.