I started with Kondos packs bought used from outfitter - $50 or so - and never knew it was not considered fine.  I bought a CCS Pioneer and then a CCS food pack some years later, but I still usually carry one or two Kondos packs with the heavy plastic liners that the outfitter sells for a few bucks.  I think it's important to keep in mind you can enjoy this for very little cost - mostly the travel to and from the end of the road if you want to, traded off with canoe rental.