Profitability of the stores is of secondary concern to Apple. I broke my 3-year old Super Drive because I careless plugged it into a non-USB compliant port. I didn't have Apple Care but I went to an Apple Store, told them it was my own fault and asked them for a price estimate to repair the drive. They gave me a brand new replacement, latest model, at no charge, right on the spot. I challenge anyone to come up with a better advertisement for good service.
Singapore will have its store at some point, when Apple can be sure of reproducing this experience with a store staffed by Singaporeans.
The sad fact is that Apple employees working in Spore have to justify every dollar they spend. Even the Applecare representative who has the final say in Spore has to justify her decisions to her superiors for any replacements she authorises.
What people don't understand is that there is a difference between Apple USA and Apple South Asia
Those under Apple USA get the big bucks while those working under Apple South Asia face "constraints"