Seconded this. The indestructibility is prized as much as the harshness of the key-presses. You will prise the Model-M from a fan's cold dead hands...and it will still likely work just fine ^^
I grew up on a mix of Model-M, terminal keyboards, and various budget keyboards on cheap consumer machines. I did really love the Model-M when I had young hands, but these days are far more used to a lighter touch keyboard that requires a lot less force.
I use a Cherry MX Red now. It's a nice compromise for me, since I game a fair amount (although most of that is handled by a G13 + mouse instead) and programme software as my main uses. My fingers know when to stop pressing, and I love the light yet reliable feel of the keys. I'm no longer hammering my fingers into a hard surface at the end of each stroke so my RSI and aches and pains are much relieved.
In the end, keyboard choice seems very personal to me.