Its been about 14 months since my last Visit. I only missed it a couple of times this past year, but maybe we will get one sometime this year. Its an hour drive without traffic, but once we left at 3pm and it took 4 hours. Oh the Humanity. Thats what helps keep the desire for a pass down, but we would usually spend a night at the hotel and go two days in a row to make it worth while. If you're more than an hour away its not a spur of the moment thing, we still have to plan it out. Either by waking up early, or booking a hotel.
Now, if I lived in Anaheim I would totally get one every year.