Go to Orchid Towers (2/F or 3/F) at Orchid Road, there are several bars there and you can choose some girls there and have a quick sex with them ranging from S$150 - S$300 depending on your negotiation skil and girl quality

that's true - Singapore is getting more and more expensive.  Remember when I play there at 1989, it was really cheap - both absolute $$$ and exchange rate of Singapore $$$.  At that time, go to nigh club cost me only HK$800 for whole night now it cost me HK$1800 just playing at Karaoke Club for 3 hours and most of the girls are from China anyway, so better to go Macau for full service and less than HK$2000 and more choice .....