We're planning to get a Bridgeport Gx1600 VMC

What's the main difference between belt driven and gear driven? the technician said that belt driven can cut deeper than gear driven spindle. is it true?? and the maintenance would be a lot cheaper with belt driven as oppose to gear drive?

Is there any other difference that i need to know before i make a decision?

I'll be using it for mold making. I'll be cutting a lot of heavy metals with it.

and how much is the VMC in your country?