Well...on March 19th, Disney decided to raise their price on the Photo CD, and it goes into effect tomorrow (3/21/12). If you purchased the CD after you returned home from your trip, you paid $149.95, tomorrow it will raise to $169.95.
If you are at all interested in purchasing this for a future trip, we urge you to use the pre-order form found HERE and pay just $99.95. The credits do not expire, so even if your trip isn't until 2013, you'll be fine! There is no-telling if this pre-order price will go up, or completely disappear. Buy today!
Spend that $70 on some Mouse Ears and a Dole Whip!
Edit to add: This is for Walt Disney World resort ONLY. The Disneyland PhotoPass is $59.95.