I've always felt that the requirement to permanently affix them to a dinghy to be overkill, but it is the law in Maryland. I've also never heard of anyone getting a ticket for not. I think the authorities responsible for issuing those tickets are pretty reasonable themselves, and know that many people already use the plates, and a dinghy isn't a very effective delivery vehicle for large amounts of terrorist explosives and such. I think they have better things to do than issue tickets for registration plates. I haven't changed from my plates, yet. Wondered how the paint held up when you rolled up the dinghy. Seems like it would eventually crack and start to look bad, and the cost of the kit and the little square just to put the sticker on is just crazy in my opinion, especially when you already have a perfectly functional plate. But there is still the legal requirement to contend with. I'm very much a law abiding citizen, so I really struggle with the need to comply with a requirement that I believe serves no purpose at all. I'll probably do it next year out of guilt, but I do think its pretty silly.