Spindrift's argument gets a lot more potent if you fill in the blanks:
1) Let's say you work full time at a non-industry job, and do not live near the slopes,
2) And let's say you're married, and
3) Let's say that you wish to stay married.
Under those premises, the concept of skiing every weekend and every holiday, plus several weeks of vacation, does not, as Mr. Spock would say, compute. There are life activities like: repairing the door, hanging out with the visiting in-laws, taking a winter vacation where most wives love, and secretly you may even enjoy a bit too (a warm place near an ocean), and Saturday shopping for new whatsits at Cosco. There are also those irksome decisions about whether to pay for a solo lift ticket or pizza and a movie with your woman. Guesses which one will make you happier that night?
4) Now let's factor in kids
This increases the number of life activities exponentially per child. Ever helped out with a day care yard sale on a nice spring Saturday? Or had to drop what you're doing/planning to do because your child has a fever and your wife already has work-related commitments? Take all this into account (which is termed, "reality), and it is HIGHLY unlikely you can get in more than 40-50 days a year.
Now if you are fulltime non-I and far from the slopes, but otherwise single and planning to remain that way, or a student (alternative reality), or if you have a wife who enjoys your OCD so you'll get out of her hair/she can rationalize her OCD, or if you prefer to have your kids raised by a nanny/roam the streets/set fire to the house while you perfect your powder moves, you may be able to pull off 80-100 days. Otherwise, NOT!
(And what's more shocking still, those of us who have families are not really pulling out our hair over not getting in 100 days.
: I'd have liked to go the moon, too, but not worrying about the NASA quota.)
Bushwackerin also makes a very relevant point; sure, it counts as a day to cruise 10 runs down a perfectly groomed blue for 2 hrs, but where you get better - and find out about yourself - is 2 hrs pushing hard, whether it's with an instructor, down a chute, in a storm, or around a gate. Those of us who can't pull off 50+ days can still make the days we do ski really count...