thats not the only reason. blue ray players cost alot and ps3s are cheaper so if you dont really have a preference on ps3 or xbox and want a blue ray player also I can c where that would be a deciding factor. system+built in blue ray player= saving money= good
The xbox has HDTV though so its not like they are going up against Sony with nothing.
Ps3
Sony PlayStation 3 Gaming Console - 160GB, Blu-Ray, Built-in WiFi, Black
$249.99
Blu-ray Players
Toshiba BDX4150 3D Blu-ray Disc Player - 1080p, HDMI, WiFi Ready, Streaming Services
99.99
Panasonic DMP-BDT220 3D Blu-Ray Player - 1080p, DLNA, SmartPhone App, Ethernet, Wireless LAN, Viera Connect
149.99
So really it just depends what your Blu-Ray player has as features and what company. I am sure you can find one that is a good price for you.
Ok so now I will compare the 360 and PS3 prices
Microsoft Xbox 360
Microsoft Xbox 360 Limited Edition Call of Duty: Modern Warfare 3 Console Bundle - 320GB, Call of Duty: Modern Warfare 3 Standard Edition Video Game, 2 Wireless Controllers, Black Headset, Xbox LIVE
399.99
Microsoft XBOX 360 Limited Edition Kinect Star Wars Bundle - Includes Kinect Star Wars Game, Xbox 360 Console, Kinect Sensor, Wireless Controller, 320GB HDD, Wired Headset and Kinect Adventures Game
449.99
And then a common less exclusive bundle
Microsoft R9G-00048 Xbox 360 250GB Holiday Bundle - Xbox 360 Console, Fable III & Halo Reach(Download) Video Games, 250GB Hard Drive, Wireless Controller, Headset, 3-Month Xbox Live Gold Membership
299.99
Ok so
Sony PS3
Sony 98423 PlayStation 3 Gaming Console - 160GB, Blu-Ray, Built-in WiFi, Black
249.99
Sony Playstation 320GB Console Bundle - Includes Infamous 2 Video Game
329.99
Sony 98311 PS3 Move Hardware Bundle - 320GB, Wireless Controller, Eye Camera, Sports Champions, Blu-ray
349.99
These prices were gathered from Tigerdirect.com Also I am in the united states and so if you are from somewhere else they may be more.
It would seem that although the PS3 is mostly cheaper. The Xbox has great bundles that will save you money.
Also I will compare my local Walmart grocery store prices.
PlayStation 3 160GB Console
249.96
Xbox 360 250GB Console- Matte Finish
299.00
So really looking at that both consoles are pretty much the same price nowadays. And blu-ray is not more expensive then a PS3 it just depends what you get.