Depends. If the band isn't very successful, not so much. Cymbals are disturbingly expensive. I know because I managed to break two of mine so far.
Also: That drumkit looks pretty porno. Not exactly my style (I prefer a double pedal and only two toms, but that's down to personal preference really) but I bet it's a hell of a lot of fun to play.
However, I don't know the company, so how does the kit sound? Also, you might want to look into upgrading the pedals, they seem rather cheap and having good pedals is so much of an improvement you wouldn't believe it.
Fen: If you want to play rolls on your bass drum, you lose attack with a single bass drum, a double bass gives you a "fuller" sound then.
But, as Trollsturmor said, it's a bitch to set up, it takes up an obscene amount of space and I find it harder to set up the kit so it matches the player than a double pedal.
But you do get like +1000 80s style points.