For toilet accessories, the price really depends on whether you are willing to compromise on the quality.
I got some stuff from U-Home (eg toilet sinks, pedestal, etc) and i think the price is pretty reasonable. As for the toilet accessories (eg towel rack, toothbrush holder, etc), I decided to pay more for better quality since these are exposed to a lot of moisture.. and also because these items need to be fixed into the bathroom walls, so if a replacement is needed in future and you cannot find any accessories of the same size, you may have to live with "holes" in your bathroom. I got my bathroom accessories from Song Cho as it gives a lifetime warranty against rust.