I think I've had quads about 5 times in about my last 15K hands.
PokerStars No-Limit Hold'em, $0.50 BB (6 handed)
Hand History Converter Tool from
FlopTurnRiver.com (Format: 2+2 Forums)
SB ($20.20)
BB ($50.70)
Hero ($49.25)
MP ($62.10)
CO ($111.90)
Button ($170.25)
Preflop: Hero is UTG with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Hero raises to $2</font>, <font color="#666666">
1 fold</font>, CO calls $2, Button calls $2, SB calls $1.75, BB calls $1.50.
Flop: ($10) J[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">SB bets $3</font>, BB folds, Hero calls $3, CO folds, Button folds.
Turn: ($16) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $5</font>, Hero calls $5.
River: ($26) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $10.2 (All-In)</font>, Hero calls $10.20.
Final Pot: $46.40
Results in white below: <font color="#FFFFFF">
SB has 3h Td (one pair, jacks).
Hero has Jh Jc (four of a kind, jacks).
Outcome: Hero wins $46.40. </font>