So I went ahead & ordered it with the oyster. Maybe I'm making a horrible mistake considering that there'll be a baby in the car, but in the end the oyster is what I really really wanted, so I just went ahead & did it! All the promo pics with the fineline matt wood & the oyster really sold me on it, & I'm wiling to do the extra cleaning/maintenance that's involved. Hopefully this leatherique stuff is as good as everyone says for removing stains...
As an aside, I'm a little surprised that oyster seems to be pretty rare as an option on the used X1s I've seen listed. Maybe everyone is also worried about its practicality.