I'm planning to get a pair as well and have been looking around. Noticed that there are a few types of 'fakes'.

There is the cheapest type where it's obviously fake, cost RM20 or so. Probably can get it from pasar malam and lower end shoe shops. Not comfortable at all. I'd rather wear flip flops.

Then there is the imitation, I'm not sure what grade AA or AAA is it. I've came across a few types and they are priced roughly around RM120-RM180. These look very much similar to the original ones, with tags and all that. There's one stall in Citta Mall that is selling it around RM180. GM Klang has a shop that sells for wholesale as well, different model different pricing.

I've decided to go for the original ones, will see if it's cheaper to get it from overseas.