IMO, I think Singaporeans are paying significantly more for our TVs compared to our neighbour countries. Merchandise like TVs, DSLRs etc are usually sold with "free" items like another TV, $100 Mastercad, camera bags, tripod etc. All of these are already factored in the price and you really end up paying too much. I think most customers do not want the "free" items and would rather get a cheaper price.
For example I was in Bangkok two weekends ago. PowerMall in CentralWorld was having a sale and the LG 55EG910T was selling for 45,997 baht which works out to be $1,800 without any "freebies". In Singapore, the price of the TV can range from $3,300 to $2,999 before negotiation. I personally bought this TV at Best Denki for $2,599 with the "free" TV and Mastercard. Of course, there is the "free" wall mounting service by LG included in the price but I end up paying $800 more than I would have paid in Bangkok. Still cheap to bring the TV to Singapore and paying the 7% GST. Only problem it is too big to hand carry and warranty is not international.
Thank you for listening. End of rant.