I can see the value of minidisc recorders, especially when someone's starting out and itching to get a rig going for little money - it's more important to be out taping than what kit you're using, if you're serious about getting as good a sound as you can. That said, I'm pleased to have been able to start out with an R09 and good mics... from the first, I've been thrilled with the shows I've now got on disc to listen to for years to come.
As has been said, it all comes down to how much you're willing to spend. I'm sure if you look around you can pick up an iRiver that would suit your needs, be it from the yard sale or eBay. I'm getting my hands on one asap, for backup and for soundboards for matrixes and all.