I'm a fan of the band Rush and I was feeling a bit Canadian this year so I went with ZED 06 on my Z. I would also be interested to hear what it costs folks to have personal plates in various states. WI charges $15 above your normal registration ($75/yr for a car) to get a vanity plate. You have to pay the $15 every year, even if you simply renew with the same vanity plate. So since they are going to charge me the $15 each year, I change my plate every year and get a new set of plates. I'm close to covering my workshop with aluminum vanity plate cladding.
I'm in the process of relocating to MN so I checked into their vanity plates. MN charges $110 to issue a vanity plate! Since I gagged at the price, I didn't bother to look and see if there are more fees for the years that follow or if it was a one-time fee.
Another huge difference I noticed was registration fee from one state to another. WI charges a flat rate by vehicle type. Whether you drive a brand new 2013 ZR1 or a 1970 Nova with 300k miles, you pay the same registration in WI. However in MN you pay based on the value of the vehicle for the first 10 years after it was built.
In MN a 2013 ZR1 is amost $1,000 to register the first year. It goes down over time until you get to the minimum value of $35/yr after 10 years. For example, if you have a $100k ZR1, you will pay over $8,000 in registration fees over the first 10 years. Even a $35,000 vehicle will cost you almost $3,000 over the first 10 years. However regardless of the vehicle value, the next 10 years you will pay a total of only $350. BTW - The "value" of the vehicle which is used to calculate your registration fee is the MSRP, so even if you got a deal on the car, you're going to pay based on what the manufacturer said it was worth on the window sticker. On the other hand, if you can spend $100k for a car, maybe $8k just to keep it on the road is not a big deal.
Long story short, I guess as long as I still have a WI mailing address, I'll be renewing my newer vehicles in WI and for my next "new" vehicle I'll be shopping for 10+ year old Southern vehicles with low miles and bringing them up North.