If you like tiny cars with crappy suspension, duff steering, wheezy turbo four pot engines, clunky gear changes, and of course those front lights, then by all means get a 4C.
If not, I'd suggest getting a decent car instead. The 981.1 Boxster with the flat six is one of the greatest cars you'll ever drive, and we may never see its kind again. Hell, if it's a tiny weekend car you want for that budget then get an Elise with the IPS gearbox, or if you can find one an Exige.