Hi to all, I'm new to cycling and i discovered the most rewarding sport in the planet, that is road biking. Great exercise, great rewards(beautiful places, lots of burned fats). I'm in the market of buying my first REAL road bike and found great reviews on giant defy 3 2013(Full sora group) as good entry level bike which cost 780 USD. As i visit my LBS lately, i found a slightly used GIANT TCR 1 2010, full 105 grouppo with Xero xgr-1 tires for 950 USD. I can tell that the bike is really fresh from paint to components so i'm confused now what to buy. Pls help me decide, your advice is very much appreciated.