Here's another perspective. I have 2 kids and I work, so in the limited time that I have to ride (a few hours per week, but I'm consistent) , I want to ride what makes me happy.

So, bottom line, if it would make you happy and you can afford it, buy it (of course after you test ride and are sure you like the Ruby better than what you have).

I bought a Trek Madone 4.5 wsd last fall after a ton of test riding and love it. The carbon is much smoother. I also test rode the Ruby Expert and the ride was great, but the fit wasn't quite right for me. But, I know the price for the one you found is a great deal.