I started on drums, switched to sax. On the road with rock bands I learned to cover parts with bass, keys, and rhythm guitar for those songs where the songwriter didn't have the ultimate wisdom to include a sax part. Later I taught myself vocals, wind synth, and my latest, lead guitar.
I played bass for a while in the psychedelic era when saxes were not in demand, and even played bass for Freddie "Boom Boom" Cannon for a short series of concerts. Bass is a fun instrument too.
I think the sax will do a lot of things the guitar cannot do, but then the guitar will do a lot of things the sax won't do.
Sax will always be my primary instrument, so if it makes a comeback in pop music, I'll be very happy about that.
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