By the time the Xbox 360 came out, it never felt like I got my money's worth from my regular Xbox unit.
The fact that Microsoft has taken it's time with the Xbox 720 (thankfully) I can truly say (even now) I feel like I've gotten my money's worth with the Xbox 360.
Not only that, the longer it takes to update consoles, the faster and more powerful the hardware will be.
The new units better have Blu-ray and HD audio.
Movies must be OAR, sports and movies must also have 5.1 audio, No EE or NO SALE!