Singapore Movie Tickets are too Expensive?

I hear the common refrain from Singaporeans that the price of a movie ticket here is very expensive. But from my own experience, having travelled to several countries and watching movies regularly, I have always thought that movie ticket prices are cheap here!

In LA, which is the last place I lived in (and where movie theaters abound), a typical ticket price is 9 USD. Comparatively, in Singapore, a ticket on the weekend costs 6 USD (4 USD on a weekday afternoon). Is it just another thing that Singaporeans complain about?

Here, I have googled a sample of movie ticket prices (in USD and affected by exchange rate).

Los Angeles, USA $9
Halifax, Canada $8.50
Lisbon, Portugal $7
Kuala Lumpur, Malaysia $2.75
Melbourne, Australia $11
Shanghai, China $3.50
Brussels, Belgium $9.50
Bucharest, Romania $3.20
Nairobi, Kenya $4
Istanbul, Turkey $6
Dublin, Ireland $10.50
Bangkok, Thailand $3
Auckland, New Zealand $8.50
Tokyo, Japan $15
Singapore $5 (average)

Maybe a more telling picture is comparing the price of a movie ticket to earning powers of the audience. Screen Digest collated the following data, which shows Singapore's movie ticket prices well below the global average.