Arriving on a Monday morning around 9am at airport, 2 adults, 2 kids (8,5). My thinking is a shuttle will cost the same amount, and this way, we get directly there, no stops.
You can take the shared shuttle through Prime Time Shuttle (primetimeshuttle dot com) or Super Shuttle (supershuttle dot com) for $40. Or for $72, you can have the van all to yourself through Prime Time. A private SUB is $100 at gosedan dot com.
Taxis make me nervous because they can vary so much.