A rate comparison for some of the bigger volume currencies, using live quotes this morning.
This is not to conclude that these rates and spreads are representative of policy, but are simply at one point in time.
If anyone can quote me the rates on these currencies, from any other dealer, I'd be happy to run the numbers again. For maximum statistical usefulness, it would help if they took a note of rates from Sheen and Mustapha at the same time...
As has been discussed before on the face of it the numbers seem pretty stark, but there is a point, 'a gross break-even point' where spending an extra hour to go to Raffles Place, does not compensate for perhaps saving $10.
Another level in the analysis could be 'How much do I actually save, buying $250 (stop-over tourist), $1k (SG based holidaymaker), $XXk (businessman, or person repatriating funds abroad) between the two outlets? I.e. at what point does a journey out of your way become worthwhile.