I'm not surprised that the shops in Spore are failing. The markup necessary to pay the rentals are just crazy. The merchants have to share the blame for supporting the PAP
Whenever I visit the US I would visit the factory outlets. These shopping outlets are usually located in the middle of nowhere, but well worth the trouble to visit.
These places have outlets selling popular name brand like Levis, Guess, Timberland,... at cheap prices

Cheaper than even the prices you would normally find in the normal US shops.
When I'm in Bangkok I go for tailor made trouser & shirts. You have such a wide choice of materials & styles. The quality of these tailor made cloths are better than anything you can get off the rack in Spore.