I'm thinking of upgrading from my 2013 trek lexa slx....I love this bike and it's sentimental bc it's my first road bike....I have treated it like my baby...stored it inside and found out today that its value has depreciated to half of what I paid for it just bc it is "used." So I'm struggling with selling it and taking such a hit but I can't afford a new bike without selling it.
I'm moving out of state and want to join group rides to enjoy biking but also meet friends. I want to purchase grok my local bike shop I trust before I move. I want a carbon bike to b able to keep up better and want either the trek madone or domane 4 series. I found a deal on a 2013 Madone wsd 4.5 for $2,300 (retail is $2,630). I like the comfort of the 2014 domane 4.3 wsd which costs $2,200 but the components are 105 rather than the ultegra set on the '13 madone. The new '14 madone 4.3 wsd costs $2,050 and has a fun paint job but again, the components are 105 groupset.
After all of this rambling, my questions are:

Is buying a '13 model bike bad bc it has had many test rides by this point and has been sitting in the shop or is it fine and I should take this deal?

What are your thoughts on domane vs madone? (I don't race and want to feel stable and comfortable but I'm definitely looking to increase speed enough that I'm not struggling to keep up like I sometimes am with my lexa now.)

Thanks! I can only have the madone on hold for a few days and I have a productive buyer for my lexa...