Well, I do spend more than 20 tickets in Visor or Alban, more like 40…but I do it in 2 or more days since I rarely use kobans for champions. For CC is just one day, I don't mind using a ticket anytime I have the chance, but between work and other activities that leave me with something between 20-30 tickets no matter the difficulty and the use of kobans is reserved as a last minute measure.