It's my joy to see a fellow blogger goes into selling stuff. My congratulation to Gundam Guy, a hardcore Gundam blogger who took months to set up the online stores.
As he is from US, his store now offers attractive pricing to some rare model kit. He also supply missing parts of your model kit if you happen to lost some parts.
Just take a look at what's he is currently offering at his website, http://gginfinite.com/