“A day’s use seems entirely reasonable to me.”
Others might want a week of use before recharging. There may even be some who want to go a month without charging. Imo though, charging once a week, and not once a day is what seems reasonable. Most people listen for 60 hours a week or less, so imo 60 hours of battery life seems very reasonable.
For those who listen 20 hours a day, 60 hours of battery life could get them through 3 days! 
How would you feel if you needed to refuel your car every day, rather than perhaps once a week or less?
