I use to own a Minidisc player, but stopped using it after I got my gen 1 iPod.
It was always a pain to remember to bring my favorite discs and to keep records of what songs were on which disc.
Now everything is in one portable device, on my Powerbook, and on the CDs.
I don't have many songs though, only around 1100, around 4.3 GBs
I dropped it a few times, but it still works though is a bit dented. I don't expect that I will need a replacement for at least a few more years.