Cost of going overseas to compete is not cheap. The tentative budget to Korea looks like this :
Flight tickets :
SG to Seoul via Cathay - $555
Seoul to Jeju via Asiana air - $175
$140 per room per nite for twin sharing. 6 nites - (6x140)/2 = $420
Registration and banquet - USD70 ~ SGD $110
555+175+420+110 = $1260 per person, thats excluding meals and other expenditure.