Is Sony Alpha Expensive???

This questions had already bothering me for some time and I think that it has bothering others out there as well. Infact, some info had been accumulated locally and it should proves it well.

In comparison we all know that the Sony Alpha camera bodies were cheaper than the 2 leading one which is Nikon and Canon.....but what about accessories and lenses?

Here are some interesting street prices for new lenses in comparison:

16mm fisheye
Sony 16mm f1.8 fisheye - RM2600
Nikon AF fisheye 16mm f2.8D - RM2770

20mm
Canon EF 20mm f2.8 USM - RM1820
Sony 20mm f2.8 - RM1900
Nikon AF 20mm f2.8D - RM1970

28mm
Canon EF 28mm f2.8 - RM830
Sony 28mm f2.8 - RM900
Nikon AF 28mm f2.8D - RM920

cheap 50mm
Canon EF 50mm f1.8II - RM370
Nikon AF 50mm f1.8D - RM420
Sony 50mm f1.8 SAM - RM500 (motorize)