It's a simple choice..
Are you going to be working within the industry as a service personnel. E.g. Engineer, editor, sound designer, compiler, transfer chum.. OR are you going to be independent player, creating and making your own within the industry.. if ‘YES” then get whatever works for you.. But, if planning to become a service type guy, then pro-tools is essential.
I use Vegas and ACID, Nuendo, Sequoia, Wavelab and Soundforge big time! But, when I do some industry work, I work via the MBox Pro-tools, cause that’s how the files arrive and that’s what they prefer to work with etc.. I have OMF’d files and ported over to Nuendo at times, but, it’s still a lot of work for big sessions etc..
If looking for interfaces, checkout the line6 stuff too.. some say it’s rather cheap and nasty. The good stuff comes from TC electronics, Apogee etc..