there only 15-16k now by the time they reach 10k they will have 40k on and be no good to man nor beast.
Having driven one im not sure what i prefer . the megane feels very heavy compared to the clio brakes and the like suffer but its quick (ish) so i supose its swings and round abouts
No doubt though the Clio is the way to go if you do allot of track days