Edit: Wait, you say the 8GB $199 is close to $250 after shipping, but the 16GB is $275 including shipping? Which is it? Either shipping is close to $50 or $25 exactly. Seems like you are trying to stretch the facts to justify your purchase.
I did notice that as of today 10/29 Nexus 7 prices/configurations have been updated, so it is now 16GB for $199 or the new 32GB for $249. The 8GB model is discontinued.
In any event, the $199 price struck me as highly misleading at the time.
And note that I paid $26.44 shipping + tax on a $249 base price, so somehow my shipping was significantly cheaper than yours.
What I can verify is that I paid $275.44 for a "$249" 16GB Nexus 7 whereas a Kindle Fire HD would actually be $199.
It's amazing that a complete computer with screen and a multitouch interface sells for $275 or $199. $200 is how much a couple people can easily spend in one day at Disneyworld, or the price of a night at a decent hotel and a couple restaurant meals.