If it improves compilation speeds by 1% then it's not a waste.

My time is worth so much more to me than money.

Then why are you using a laptop?

Why even bother with such an inane answer ?

It's because I need to use my computer whilst not physically attached to the same spot i.e. between work/home, travel.

You know the same reason as almost everyone else.

If faster compilation speeds matters as much as you said earlier then I'm sure it would be worth investing in machines for both work and home.

I'm not sure I understand how this would help if a user wants to stay mobile or what does this have to do with 'better investments'.

What does saparate machine for work has to do with "compilation speeds" in the first place?

which Mac desktop has similar performance?

Like what?

Guac at Chipotle