A competitor (in the UK) that only advertised IT jobs starts at £10K (seems a little low to me, I'm not even sure this meets minium wage requirments?)
I'd say this should be moved to £/$/20K as a minimum. Unless you only plan on advertising mid-to-high end jobs?
Outside of London (which is a special case) I'd be surprised to see anything but a very senior job over £50K. Basically as it stands this filter is unusable for me.
I've just done some experimentation for a blank UK search there are 1,877 jobs (BTW this isn't very many, a close IT compeitor in this country reckons it has 9,700 current jobs):
add just the 50K filter and this drops to 260!
So 87% of the UK jobs fall outside of the minimum wage of the filter!