$22 - ITM: To gamble or not to gamble?

[EricW]

#Game No : 2743462582
***** Hand History for Game 2743462582 *****
NL Texas Hold'em $20 Buy-in + $2 Entry Fee Trny:15901699 Level:5 Blinds(75/150) - Tuesday, September 20, 04:14:19 EDT 2005
Table Table 13772 (Real Money)
Seat 6 is the button
Total number of players : 3
Seat 6: DMNDQUEST25 ( $675 )
Seat 9: alldawayin ( $6400 )
Seat 2: Hero ( $925 )
Trny:15901699 Level:5
Blinds(75/150)
** Dealing down cards **
Dealt to Hero [ 9s Kd ]
DMNDQUEST25 folds.
>You have options at Table 14001 Table!.
alldawayin calls [75].
Hero checks.
** Dealing Flop ** [ Jc, 8d, Tc ]
alldawayin bets [400].
>You have options at Table 14001 Table!.
>You have options at Table 14001 Table!.
Hero is all-In [775]


This has to be the correct play right? The big stack has such a large lead that any chance of playing for first would mean I'd have to double up by getting chips off of him. Is my line of reasoning flawed here?