My P3 has been going strong for about a decade now, I upgraded the 160GB HDD to 1TB and filled it up a ton of games and barely play it now.
I have a 250GB Modern Warfare 2 edition that I picked up for a good deal and a Jasper 360 that doesn't load games anymore.
My OG xbox still runs great and I've got a ton of games to play should I ever feel the urge.
1TB model I purchased October before last. Have 50+ games I've purchased installed currently.
Really like my XL.
Picked up a GO recently, packed it full of PSP, SMS, GG, GB, GBC, GBA, NG titles to play whenever.