We live up in the Jacksonville area, and we bought Florida resident AP's (not seasonal) last year. We bought them in November of 2005, went the week before Thanksgiving for 5 days, then for the AP preview for Expidition Everest in January (2 days), a long weekend in March (three days), one day in April, adults only weekend in August, and a final long weekend in October - 6 trips in all. (we would have stayed away in August, but it was just my wife and I for our anniversery)
We found we really, really don't like single day trips (we live about three hours away), because the drive hope in the evenings really, really stinks. We like to stay on property when we go (we stayed off property in the spring of 2001 when our son was three, and have stayed on property 8 times since), and the AP's have helped with room discounts a few times.
We are taking a year (almost) off, to recharge our Disney obession (and our bank account!), but are planning a trip for Epcot's 25th the beginning of October (suprise for the kids, too). Don't know if we'll buy AP's or just florida resident tickets for that weekend.
One of the things that we found we enjoy the most is park hopping. We have started the day at MGM, and moved to Epcot for the food and wine festival in the evenings, start at Epcot and move to MK later with a rest in the room in between, that sort of thing. I know you can buy regular tickets that are park hoppers, and we have, but we really like the flexibility of the AP...for instance, if we wanted to leave say at 1PM on Sunday, then we don't 'waste' an entire day's ticket for the few hours we'd be there - or if we arrive late the day we get there, we can still catch one of the evening celebrations (Illuminations, Fantasmic, Wishes...)
When we're closer to retirement (15 years or so...), we'd like to move down to the Orlando area...and we definitly use AP's more then!
Kevin