Samurai is narrower so can go places the Kick might not.  They have smaller motor and no power steering. No fuel injection.  Parts are usually cheaper but can be harder to find.  Tough as nails. ÂÂ
not sure where you live or if its the same in the states, but in canada they started making the sami's FI in 1989.. or around there
i say get a sami, ive owned both and i like the sami much better... parts are definetly harder to get, but most things i've had to fix could be repaired if i spent a little time, plus there are quite a few samurais around here if i needed some used parts
simplicity of the samurai is another bonus, dont get me wrong, i love trackicks as well, just my opinion
Andrew