pricejapan also has a shopping service. they buy whatever you want and deliver to your hotel if you are staying in tokyo. saves you having to go to akihabara and searching around if you are busy, but i would go to akihabara anyway just for a stroll. its an amazing place, but be careful, they sell porn openly as well there if that offends you, and I mean japanese type porn which is a bit nasty. pricejapan probably has a deal with some of the retailers so they can get the zaurus and other stuff cheaper because they buy in bulk or buy from them all the time. there is a lot of business relationships stuff happening in japan, much more than in the western world. consumers normally don't get discounts but points to redeem for other things so if you want something cheap, you need an agent, ie pricejapan to get it for you or buy from those places that sell pre-loved, or older models in akihabara.