It seems a lot of geeks want some type of air blower to dry their cars. Being an average dude, living in an average place - I don't have a garage big enough to wash in - or shade to wash in at home.
So, I got a Master Blaster - as I thought it would help dry faster to avoid water spots. While it does allow you to dry without touching the car, if it's hot and sunny - you will have water spots before the car is dry. So, the MB is great for drying wheels, drying without touching, getting water out of cracks, etc...
However, for the average dude, I find my CR Spotless does way more all around to help making drying a car easier and faster. The reason is, you can wash in the blazing sun (keeping the car wet while washing), then rinse with DI water, and then just basically let the sun dry the car. This is a phenomenon that is amazing the first time you see it - if your used to hard water.
So, you can wash and rinse with DI water, and then let your car drip dry / evaporate while you clean your buckets, clean your brushes, put stuff away clean your jambs, or eat some lunch. Then, just wipe the little bit of DI water left with a QD and a waffle weave. That's what I do at least.
Just my opinion, but I think DI water does more to effectively dry a vehicle than any air blower.