I don't think two-up/luggage is a consideration.
Both will do this. The 650 has adequate power.
Both bikes are basically the same in size and
"creature comfort" in respect to both rider
I still stand by the point of view that the only
reason to get a 1000 is if you want a 1 second
lower ET in the 1/4 mile. And of course, if
you just like it. It will probably boil down to
whether you are a power rider or a finesse
rider in the curves.
Both are fabulous. If a big trailie is your soup,
then I think it is pretty much impossible to be
dissapointed with either.
As far as $. This is more important to some than
others. $2,000 will buy a hell of a lot of cool
mods for a DL650.