The preorder is fully refundable. Why not order, take as many photo pass pics as you want....... then decide. It's a lot less of a deal at $149 that it is at $99, that's for sure.
^^This^^
If you make an effort to stop at all four icons at a couple different times of the day, you'll already have about 30 images. And that's just from 2 spots.
There are Photopass spots all the way up Main Street and at the Hub - and that's just for the Castle. Then if you stop at night, that's another set of shots. (~10 shots there)
If you go meet Mickey and Minnie at Town Square, there's another 5-7 shots. (TOTAL ~17 shots)
At EP, you've got at least 3 different spots for SE. Add 15 more shots, and that's not including any photos at nighttime. (TOTAL ~37 shots)
There are PP photogs set up in the afternoon on the bridge between the UK and France, it's a really pretty shot. (TOTAL ~45 shots)
At DHS there are photogs all along the main drag for shots with the hat and I've seen some off to the side to avoid getting the stage. We have also asked the photogs to turn the other direction to get the Crossroads emblem near the entrance. (TOTAL ~60 shots)
At AK you've got the Tree of Life shot on the bridge and also one a little closer to the tree. We also did a boat load of "magic" shots at this spot too. (TOTAL ~75 shots)
You figure that if you have at least 20 keepers, to buy them individually is $14.95/ea. That's WAY higher than the cost of a pre-ordered CD.
Pay the $99 for the pre-order deal and make an effort to stop at the photogs. My numbers were VERY conservative. You'll have way more opportunities if you stop and meet characters. Most of the character spots have a Photopass photog on-hand.