LOL Funny you call me out on making the purchase! I did in fact place an order yesterday, but canceled it this morning. (Long story short, I need to wait until payday to be sure I've got the spare cash, I had to replace my washer/dryer this week.)
I had ordered, and will probably reorder again later, the top end 27" and only changed the storage to 512 SSD. Since a majority of my computer use is: web browsing, homework, typing reports for school, occasionally running 1-2 VM's of Windows/Server 2012, and maybe once every 6 months playing World of Warcraft, I decided that the default i5 and default M395 GPU would well serve my needs. I'd love to go maxed out, but the nearly $500 extra just isn't justifiable to me based on what my needs are.
I'll probably wish I had spent the money later, but from a price vs value perspective, that configuration is the most economical.