This is completely users choice here. One thing to remember, if you damage that motor, there is only one place that I know of where you can get a replacement motor for that helicopter. That little beast is a direct drive and is supposed to have power for days! The other thing is, that is a 280 and a 450 heli is a 325 so it is smaller than a 450 helicopter. If you fly in tight spaces or just want something to toss in a bag and go, this is the helicopter for you. But if you are out flying over a 10 acre field every time, I think maybe you should look at something a little larger. BUT... even on a large flying field, this could be an awesome little helicopter to have.
I'll put it this way. I have everything from the mSR to a 600 nitro hanging on my wall and I would love to have one of those little 280's on there as well. As long as you don't just lawn dart the hell out of it, it should be much cheaper to repair in the event of a crash.