I too dithered about what to do but the other way round to you.

I really really wanted a Mac but also wanted to continue using my robo.

The only way to use Robo with a Mac is to instal Windows either with bootcamp or parallels.

I researched thoroughly and thought doing this would slow the Mac down too much so my solution was to buy a Mac and a laptop with Windows to use for roboing. Not the cheapest option obviously, and not that convenient either.

Not sure I made the right choice.

I did hear, can't remember where, that there are plans to make the robo software multi platform but maybe that's me wishful thinking