I don't think it's as simple as that, just ask any large company who is paying £100K+ for developers. It generates even more noise than before since there are plenty of chancers who will apply because if they get in then great but in the meantime, we are struggling to make good assessments of people's skills and values and it is hard to judge in a short time whether someone is working out, in which case you might have lost £30K to a Recruiter and another £15K in salary for someone who didn't work out.
If we had loads more money, we would probably pay for more specialist recruiters but nothing we have tried so far has been brilliant. We are looking at the whole package though, I think there are things that are relatively easy to do that make a job look appealing like duvet days or free posh coffee and stuff like that.