pricecompare.com.au
getprice.com.au
myshopping.com.au

just to mention a few.

I find that with aggregate shopping websites like this, the more focused the niche, the more valuable the website because the creators focus on getting it just right for the targeted audience.

It’s hard to build a catalogue of every single electronic store that sells electronics in Australia, so an aggregate website that has to does this for too many products can’t have the best prices because it’s more likely that there are missing stores on the list.

It’s also rare to see someone go, I want a camcorder of this exact model for the cheapest price…but while I’m at it, I’ll pick up some shampoo as well.

With tech products, most people know what they want, a dvd player, a laptop, a tv (and accessories), so anything else that doesn’t belong in that category is just a distraction.

Aggregating electronics and appliances is a hard problem though. It’s much less like a commodity, so price isn’t the only thing that gets people to buy. There are lots of different warranty deals to choose from, you can find deals on sets of items (e.g. camera + tripod at a discount), and it changes all the time…the more parameters you have in determining whether something is the best, the harder it is to have an aggregate that works for everyone. When you have situations like that, making it social rather than automatic might be better (ozbargain.com.au is a really good example of that)

Maybe I’m too picky but I’ve thought a lot about building my own aggregate website for a niche

It’s more for general tech goods (cameras, TVs, computer accessories & peripherals) than computer parts, so fills a slightly different niche. It also claims a few other markets (fashion, food, health) though I’ve not used it apart from the tech goods.