This whold new level has some intersting aspects.
The first is where is Hasbro but mostly where is Mattel? This would fit greate with their Hotwheels-Tyco RC lines. With their acces to a huge lot of body styles I wonder when this 800 ton gorilla will hit or like Microsizer lost the window due to thinking they had time and room.
Microsizer had their window and lost it by there own poor timing and wating for Xmas. From when slashdot { destroyer of sites } had the first blurb about hyper tiny RC car, through Aug they HAD a window. But no marketing, no product, no effory, prices around an inport or even more. To Tomy it proably does not matter if you buy one of their or a repackage Microsizer. They will get payed. I still have not seen any Microsizers except of a Hobby Town near me. And 8 dollars for a 2.2 is a bit much! For their price I can order an import and get 2nd-3rd generation designed. They are basically selling first gen and no dual speed units. Also even the guys and gals in Austrila got basically the same Tomy packaging slighter alter and in english but a braned Tomy RC. Microsizers should have keep the intersting name instead of Microsizes. Name means everting. As some character said in a move "It sings". Which is more intersting and tells a bit about the product? Microsizers, Bit chr-G or ZipZap?
The price of 19.95 to around 24.95 or even 27.95 is not bad and worth it. I am use to import prices, shipping etc so 35 for a Japanes bit is not that much of a shock.
I think RS got it right down the line.
1) Its at a magic price point of 19.95. I have done price point calc and 19.95 is magic since it still feels like it around 10 dollars.
2) Detuned enough to have a good margin on componets life.
3) Package to sell. By peg rack or by hook.
4) Avaiable { if in stock

} in over 5000+ stores. Back in the early to mid 80's I did some custom products and conversion for Tandy and understand even one copy to a store means good sales! They knew this before Walmart!
5) They hit hard and very strong compared to Microsizer being slow out of the gate and weak.
6) US car bodies both real and unreal.
7) Both word of mouth and a base of people preset for them before they evern were released! Tv ad, print ads are very expensive. Word of mouth is the best ad you can possibly have.
8) Basically cheep addons. That add up to proffit for them as you start to have fun with it.
A ZZ is not the best or worst and not the first or the last but its there and does do what its need to do.
There a lot of reasons but I think the winner are as follows.
1) Tomy. On 2nd and 3rd generation.
2) Radio Shack. Marketing clout. Decent product. Distrbution up the wazu!
3) Clones. Because of price.
4) Microsizers { if they survive } Bad price point and no marketing.