Ori price i believe was about 100USD for cheapest; few hundred for the floor spots, and i think 1500USD for the really front row, stage-side VIP spots.
The 100 USD ones are not cheap, but definitely something you can squeeze your budget for.
Hopefully the Singapore one is fairly priced, and you just go by luck of the queue/website (instead of who has bigger purchasing power like an auction/free market). The T&C says tickets are non-transferrable, so that's good.