Not long after I first opened my recording studio, (some 20 years ago, when people actually booked time via a landline), I got a call one day about a booking request.
Client: "Hi, we'd like to book every Sunday for six months, for 4 hours a day."
Me: "I really try to keep bookings, especially weekends, to full days."
Client: "But we just want to come in and jam. Then we'll pick out the best takes for an album."
Me: "But it'll take at least an hour or two for us to set up."
Client: "Oh, we're quick."
Me: "I'll need to set up microphones, get levels…"
Client: "Yeah, but once you've done it the first time, it'll be faster."
Me: "Sure, but still, what if I get a booking asking for that whole weekend?"