Quads are not always getting paid off.. This was at a bad beat table btw (losing with quads 8's or better triggers jackpot):

** Game ID 616974658 starting - 2005-12-19 00:35:54
** Bad Beat Table 4 [Hold 'em] (0.50|1.00 No Limit - Cash Game) Real Money

- wiretapper sitting in seat 1 with $159.40 [Dealer]
- atsen sitting in seat 2 with $11.65
- OhGiggity sitting in seat 3 with $97.80
- Howlzat sitting in seat 4 with $64.62
- Hassy sitting in seat 5 with $240.61
- skinsfan76 sitting in seat 6 with $17.00
- johnny291281 sitting in seat 7 with $100.00
- NegreanuRox sitting in seat 8 with $32.95
- lill_bomber sitting in seat 9 with $64.50
- ean_88 sitting in seat 10 with $16.10

atsen posted the small blind - $0.50
OhGiggity posted the big blind - $1.00
** Dealing card to johnny291281: Ace of Spades, Ace of Diamonds
Howlzat folded
Hassy folded
skinsfan76 called - $1.00
johnny291281 raised - $4.00
NegreanuRox folded
lill_bomber called - $4.00
ean_88 folded
wiretapper folded
atsen folded
OhGiggity called - $4.00
skinsfan76 called - $4.00

** Dealing the flop: Ace of Clubs, 6 of Spades, Ace of Hearts
OhGiggity checked
skinsfan76 checked
johnny291281 checked
lill_bomber checked

** Dealing the turn: Queen of Spades
OhGiggity checked
skinsfan76 checked
johnny291281 checked
lill_bomber checked

** Dealing the river: 4 of Spades
OhGiggity checked
skinsfan76 checked
johnny291281 bet - $10.00
lill_bomber folded
OhGiggity folded
skinsfan76 folded
johnny291281 wins $25.70 from the main pot