I wanted all marked state agencies for my collection. I also wanted to have a representation of cars from all different areas of the country, not just the east, or west etc. Along the way i have tweaked the collection some and included a couple of unmarked cars. I even tried to get different paint colors and a combination of interior colors to mix things up some. I realize my situation is different but the key to it all is I bought what I wanted and liked.
For the person that doesn't have the time, skill, or place to work on the cars then look for the car that meets your financial parameters that doesn't need much work. If you have a full on restoration shop or access to one and have th skill to do the work, then what you buy really doesn't matter as long as you like it. All that matters is that YOU like what YOU are buying.
Joes car is probably the most documented car out there for sale. Jon's low mile car is pristine and needs nothing. Either one would be a great car to own !!!! You two ought to trade