If your moving into the 21st century avoid Mastercam. It's old school and getting worse in my opinion. The lathe software in Mastercam just introduced the ability to solid verify round boring bars. LOL. Before that they could only be square.
You will be very happy one day when you look back having decided to go with Esprit. Esprit is very capable and getting better all the time. They have recently been the choice of Mori for their high end machines.
Also see many threads on this forum about buggy Mastercam not fixing the version you buy if your annual maintenance contract expires before all the patches are released. You will be left with software that may not work
Esprit guarantees you get all the updates including the first release of the next version. This at least gets you all the patches for the version you paid for.
Also the prices charged for Mastercam are all over the place. Seems the mother ship will let the dealers charge whatever they can get from you. Our dealer jacked prices almost forty percent after we purchased here in Canada.