We had a good look around nighttime Singapore and an enjoyable evening in a comfortable roomy car. The Night Garden by the Bay show is lovely (but wet, no umbrellas supplied)
Unfortunately, due to thunderstorm weather, we were unable to go up to the Marina Sands observation deck- understandably. However, we got no money reimbursement for missing this, and the next night it was booked out, and the following night our party of 4 had the additional expense of $112 to attend the observation deck.
Our Little India exploration was confined to the car due to torrential rain.
No one can control the weather but I feel some observation deck vouchers would have been a reasonable addition.