Yes Josh, you may be right that most sensors have dust and some may look like yours, but i know that mine is nearly spotless, i do as Andrew suggests, and give it a quick air blow each time it is fitted to the scope, and than when put away.
Makes a hell of a difference, and the camera is never open for more than a second or two, and never when switch on, these things are real dust attractors, and these little precautions make all the difference,
Cheers Leon