Since you have a bike that's been "done right" for you, and if I can make two assumptions: one that it's paid for and two that you have a garage, I'd like to make the following suggestion.
Completely wash and dry the bike. Take it for a short ride and fill the gas tank. When you get back home change the oil and filter, add fuel stabilizer, check the tire pressures and remove the battery.
Push the bike into a quiet corner of the garage and throw a breathable cover over it. If it were mine I'd prop up the front end to get weight off the fork spring, too.
Now, go in the house, sit down and have a beer. Most importantly, try not to think about the bike. That's right, forget all about it. Think, instead, about your new baby and how great it will be being a dad. This isn't an either/or situation, just another faze in your life and you should embrace it. Enjoy every moment.
A year from now, when things have settled down a bit you'll remember that bike in the garage. For a little prep work and minimal expense you can get it out of storage and put it back on the road. After you've taken it for a ride ask yourself if you can see yourself riding again or if it just doesn't fit your life anymore. If it doesn't, THEN put it up for sale with no regrets.
A year in storage should have no negative effects on the bike and one more year of depreciation shouldn't have too great an impact on it's value. Who knows, if the economy improves you might actually get more.
My opinion, I wouldn't make a decision that, long term, might be uneccessary. YMMV
