Remember Sturgeon's Law though. Even if you are paying above market rate (which for someone with a good understanding of, and capable of applying, first year undergraduate mathematics taught in a decent CS course, is perhaps $200-400k/year equivalent) web development is just a crap area to work in generally, due to the mountains of technical debt built over the years between dealing with modern browsers, adtech, "frameworks", fad "du jour" let alone the stuff baked in by the previous team. Those who are willing to cope with that stuff usually take the finance industry bribes. I interviewed an Excel add-on developer for a second rate bank who was making a base salary (i.e. cash, pre-bonus) of 600k - admittedly he had been there 10 years and his work was key to the traders productivity but still... back in the days only quants could aspire to that kind of comp.It's so frustrating. I think that a lot of developers are within that subset of the population who are dumb but feel like they are intelligent because they possess a skillset that a lot of people, both those with that skillset and those without, feel like is a decent proxy for general intelligence.
10 years ago you could sort of take the shortcut of using an interesting stack (which is what Paul Graham talks about in his famous "blub" essay), but the market has caught on even to that (e.g. Facebook hoovering up all the Haskell developers all the way up to Simon Marlow). We're approaching a strange singularity where Moore's Law has halted its progress whilst incidental complexity is speeding towards critical mass and important parts of the ecosystem we take for granted (like Google search, or operating systems) are starting to break apart. The flow of giant amounts of money into the space has only precipitated things by introducing dynamics that force companies to self-destruct within a couple of years (Quora is the best example I can think of).
So today you're basically trying to snipe the guys not clued up enough yet to understand their market value... and when they realise that they could get 5x the money and everybody else (i.e. including you) knew this, loyalty is not exactly the first feeling to bubble up. Meanwhile waves of parasites, more numerous and tenacious than cockroaches, have learnt how to talk to managers and tell them what they want to hear, replacing the departing developers "with a bad attitude". By the time the company realises what happened, the deadline is 6-7x overblown and nothing has been built that works, but hey, it's just a month away...
/rant