Thanks for all the comments, folks. I had originally planned to sell the Metro, and treat the PJ as a kind of "upgrade," but when I got the Metro out and started playing it, I began to waver quite a bit. The tone is just soooo nice on the Sadowsky, and I tend to play it more than the 'ray.
I think the weight issue is what's going to be the real tie-breaker. The decision otherwise boils down to variety vs. best tone, and that's a tough call to make. But the weight difference is significant, and the SR wins easily there. The weight factor used to be a minor consideration, but not any more. I also get to keep my Tacoma if I sell the Metro, and the SR has definitely has a more interesting look and provenance.
Right now I'm leaning toward selling the Metro, though it is one hell of a nice sounding bass (perhaps the best overall tone of any of my basses when in passive mode) that I will miss very much.

Fortunately, my new PJ will console me.
Don't sell the Steinberger!!!
Just had to say it.
LOL. The XL-2 is one of the "not for sale" basses. Not ever, if I can help it. I'm not really considering selling either of my Reverends or my Dark Star P bass either. I'm sure a lot of folks won't understand keeping either the 'berger or the Reverends, but the Reverends are simply amazing and unavailable, and the XL-2 was my main bass for over a decade and has a unique tone that none of my other basses can touch. It's also near-mint.
One of the big boys has to go, unfortunately.