If you're happy with your Phantom at the moment then stick with it. Ultimately, the point of paintball is to go out there and have fun, it's not to:
whore guns (/spoiler alert)
I've played with Phantoms and CCMs (and others), and while the CCMs are very, very nice, they're not for me. Most of my playing pump has been with single tubed nelsons so the sniper platform felt awkward. Sure, I could have gotten used to it, but if I'm already having fun using something else that is just as reliable I saw no need to switch.