At home I've got a compressor, definitely my preference. In the car I've got a mini compressor.. not the greatest but if your a stranded cyclist you love me. In the lean to shop I've got a joe blow floor pump handy in a pinch if I want to get the tube into shape while mounting etc.. I picked up a frame pump and found myself struggling to get to 30psi!!!!!!!!!!!!!!!! I get this is a descending hierarchy and the frame pump is well a frame pump.. but really? I could see getting up to possibly 50 psi on the side of the road with this contraption.. good enough to get to the next gas station/bike shop maybe? So I figured I'd pull the trigger on a Co2 pump.. seemed like a logical choice to someone who knows nothing about them.. the one I found that I like tops out at 50psi... depending on tire size!!! At that rate I'm tempted to just keep the frame pump, but would it be worth it to get the co2 pump just to save space? (my "frame" pump isn't compatible for mounting on my bike and is the main reason I carry a bag while biking).