Malay trip or Overnight dhathuru

i need some opinions. heres whats up. i got an invitaion from ELKEN to go to Malaysia for a week. plus 2 days at a 5star hotel with meals and accomodation for the elken manager's meeting. but ill have to pay around half the money for the ticket there. but going to do some business and pretty confident that i can get the ticket money all back. plus ill meet alot of friends from malay during the week and it would be fun. then again i might be a bit busy with the meetings and all to have any real fun. leaving on 16th night. but heres the catch. ive been looking forward to an overnight trip to a deserted island with family and friends. about 50ppl. its kinda like a re-union trip since almost everyone is always in some other country doing studies. but this time alot of ppl are here. its gonna be loads of fun too. if i go to malay for a week, by the time i come back the overnight trip would be over.and ive been looking forward to this overnight thing for so long. ive made up my mind about the choice but wanna hear some opinions about it.