My '83 had 293,509 miles when I bought it. I don't have any set limit for mileage on a prospective vehicle. It all comes down to the combination of condition and price. If it runs good and it's cheap enough, I'll buy it even if it's over a half million.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.