Well yeah, if the choice is Vardy or someone better I'm sure we'd all take someone better, including Wenger.
The point was we let Higuain go to try and sign someone better and I assume it's the reason why we've not signed a centre forward since Giroud. If you can get a significant upgrade I'd rather we take it than wait around until 1st September hoping someone becomes available and decides to choose us. Frankly I wouldn't lose any sleep over missing out on any of the others anyway, at least Suarez was worth gambling over.