We've had canoe registration here in MN for many years.
Few craft get on MN water without paying the state a fee (small seasonal duck boats and maybe some antique craft come to mind).
Last summer I started an effort to try to exempt old canoes from the registation, and talked with a guy from the DNR a few times about it.
We ran out of time and will have to take it up next year but.
He had a number of valid arguements for registering canoes/other paddle craft, including; providing the DNR with numbers of folks who do canoe/kayak/paddle etc, provide funds for canoe trail (river) improvements, ie, carry down landings, on river camp sites, mapping services, etc.
Here in MN canoe registration isn't going away.
He also was not positive about exempting old canoes/paddle craft from the registration, it will be an uphill battle.
His rational was that the current "driver" for (motor) boat registration was the Coast Guard regs, which currently exempt some craft, (I believe non-motorized) BUT he/they were/are expecting a revision soon (1-2 years?) that would remove the non-motor exemption in the CG reg, which would then "require" the states to register all watercraft.
As for getting the old canoes exempt, we currently have an exemption for old snowmobilies (yes, all snowmobilites must also be registered.) if they are older then a certain date and used either in club event/parades/infrequently.
We wrote the "old paddle only" exemption copying/mirroring the snowmobile exemption and used some of the existing water craft exemption language.
But getting it to pass is another matter.
Dan