Topeak RoadMorph or Mt.Morph pump. Light, morphs into a mini-floor (really!) pump with expandable hose, footrest and guage. Around 25-30 bucks.
Mini Pumps: mine took 300 pump strokes to get road tire up to about 80 PSI; with the Mt.Morph it took 100 pump wstrokes to get in 100 PSI.
CO2 is fast/easy but you don't get FREE air. Not as enviromentally friendly.
Anybody can make something 'cheap' . . . but quality lasts!
Just our input . . .