Xbox holding up

Well, the repaired Xbox is holding up just fine. I really gave it a workout this past weekend. I was disappointed to see that after a failed repair that they didn't send me a new one. Also, when I went to check my repair status at xbox.com, it shows it was warrentied from 8/2007-8/2008? What's up with that? 8/2007 is the date I sent it in the first time for the CD tray issue. If this thing goes south again in the fall, I'll be pissed if I have to shell out $99 to get it fixed.