I bought my 14 separated from a GF1 kit and the whole thing was $200 and I sold the camera for $100. But, apparently, my lens has more plastic in it vs buying it alone? I want to buy a 20/1.7 (again) and I can get it from a kit (without the nifty pouch Panasonic gives you) for under $300 but I have to pay like $350 to buy the retail version. Are they the same or does one have more plastic, etc? What other lenses are like this? I'm going to get a 45 too and deciding if I should buy retail or not.