I have six Mustangs with the seventh (1966 350 GT) on the way.
My '66 Springtime Yellow GT coupe is my daily driver (when it's not raining), the rest are shrouded in plastic display cases on my bookshelf!!!!! Sorry for being a "smart-----rse" but if you can't afford more than one of the real thing, then start a stable of models!
Stable includes:
64 1/2 coupe (1/24th scale)
the following are all 1/18th scale
65 coupe
65 Springtime Yellow GT F/B (to go with the real one)
67 Eleanor
67 Eleanor Modified Muscle Car
66 Blue 350 GT (on the way)
Not to mention my museum as I call it of various signs, books, flags, mugs, stubby holders and vanity license plates.
I think I qualify for Mustangitus