Hey guys, i'm looking to buy my first road bike this weekend. The two bikes I looked at and I did test ride is the 2012 Giant Defy 5 and 2012 Scott speedster s30. Imo, both were comfortable and good bikes. The defy 5 is $600 and s30 is $850. I will be riding 2-4x/week maybe 40/50 miles total. Mostly riding on flat roads and mainly for fun/fitness. i know the s30 has a lighter frame and better components/shifting. but is it worth the extra $200? or is the defy 5 good enough to start with? need some input. thanks!!