The only problem with acoustic guitar as I see it is a lack of volume in many circumstances. Otherwise it will give you pianistic chords, drum-like rhythm, reedy to flutey single notes, a wide dynamic & tonal range, and is the most portable of instruments to allow these things. Besides, one can be a "3 chord Gord" or a highly advanced player and still entertain ones self and others. Add to these things an adaptability to a wide variety of styles and being firmly rooted in the family tree of styles and cultures and the guitar is a winner. A seemingly universal appeal to youth, in image, tone, style, and voice, has it firmly rooted in our minds too. There are more guitar types than types of other instruments, more tunings, more sounds.

Peace, Mooh.