Well...I gotta say, I really love the new Rumble 800c. I will be purchasing an extension cabinet. I'm leaning toward the Rumble 4x10 or 2x10...I guess my decision will come down to the great advice of the other Rumble-folk and my own insane and tedious research. It's a great sound!!
I believe it comes down to your tolerance for schlepping gear. The svelte, sexy 210 just weighs 10 lb.s more than your 800c. The stocky, sturdy 410 weighs 33.5 lb.s more (AKA more than twice the 800c), but has casters to roll on.
Here's a thought; get one of each! Your 800c can drive them both at the same time!! Make as many A/B comparisons as you possibly can during the sellers return period and keep whichever "floats your boat", or both if you've a mind to.

