* Signing bonuses, I'll give you; they are trivial to value and probably should have been included.
* I would doubt that most companies are offering shuttles, day care, or any of these other benefits. Of that list of more esoteric benfits, my company offers yoga and Pilates classes. I'd value them about as highly as catered lunch (if I took advantage of them), because that's about what it would cost me to go do that stuff on my own.
I guess I'd go even farther on health insurance, then, and say that for a valued professional employee, good health insurance should be a basic requirement.
You know what the most common tech company "benefits" have in common? They allow people to stay at the office longer.
* Finally, stock and stock options. Ok, if you're going to give me straight up liquid stock, I'm going to value that as a part of my compensation.
But, options are literally worth the paper they're printed on until they're exercised. And after that, unless the company has gone public, they're still hugely illiquid. Exercising them can be an issue in itself, depending on the strike price. And, then there are the taxes to contend with.
Let's just say I don't put a lot of value in stock options, in general.