I am not seeing much love for the Clip Sport here in the SanDisk Forums!! I never had a Clip or Clip+ so I do not have any legacy bias for the discontinued units.
I am enjoying using my Clip Sport for all the reasons listed above by TomRoche.
And the price of $40 for the 4 GB version is really nice.
I am about to buy a second unit. Gotta collect all the colors.
My older MP3 players are iPod Nanos. Costing about $150 for fixed 16 GB and very dependent on iTunes management.