JMO. I think, with organs in particular, the quality of the player is much more important than the subtle differences between two very good B3 clones. So unless you're second coming of Jimmy Smith, I think such things like weight and portability would be more important to a second-tier player (I say 'second-tier' because that's who is most likely to be carrying their own equipment). Me, I never thought I'd see the day when I could have a pretty darn good representation of a complete 'B3 w/leslie' in a durable, 34lb. package. Would I trade my C1 for a XK3c + additional lower manual + Leslie? Yes (I'm not an idiot), but only if it never had to leave home OR I had a full-time roadie.

Let's face it, unless you're an organist and that is your primary instrument, buying either a C1 or an XK3c w/attachments, is probably a big waste of money. Something like an Electro makes much more sense (that is, if you think the organ voices on your arranger are not up to the quality of the rest of your musical presentation).

BTW, with all the interest in the latest technology, why all the interest in an instrument as 'dated' as a 'Hammond organ'. Next thing you know, we'll start to see an interest in digital representations of, dare I say it........pianos.

chas