The economic strength of Singapore is one thing that has made me it's major fan in recent times. It probably may not be popular for tourism like you noted @steem-samiam but it's a country I'll definitely love to visit. The Marina Bay Sands Hotel is a great site to behold. I'm sure you had a great time.
Yes, Singapore is definitely a powerhouse in its own right. Even their airport has been voted #1 for many years. I thought Vancouver, BC airport would be #1, but that was until I was in the Singapore airport. It has so many things to do that the next time we came back we gave ourselves 2 days in the airport. Mind you, that was overkill :)
Hahaha...... I just peeped into some google images and from what I saw, I definitely would have stayed 2 days or more myself.