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And to top of the first generation of home arcades, here are final sales figures for each firm.

~475,000 units - Atari Home Arcade Series (Pong, Space Race, Stunt Cycle, Video Pinball)
While Atari ended up at the bottom of this list, the success of their arcade machines helped them continue through this era of gaming history. Most recently, their 1976 title Breakout become one of the most successful arcade games of the era. The engineers behind the game, however, would leave Atari to found a computer company the same year. As for their home arcade machines, Pong and Space Race were the more successful of the two, whereas Stunt Cycle (Atari's attempt at riding off the Evil Knievel craze) and Video Pinball were much less successful. Plans for a Breakout home arcade never went through in favor of another project inspired by Fairchild's latest home arcade.

~650,000 units - RCA Studio and Enhancer
For a first mover, RCA proved to be a successful force in the early gaming industry. While 650,000 units sounds weak by today's standards, it was a breakthrough in 1971, and the Enhancer allowed demand for the Studio to continue.

~1,000,000 units - Coleco Telstar Series
Coleco ended on top in terms of sales, but almost every cent made off a Telstar unit was spent on development of a new part of the Telstar line. This would eventually lead to Coleco's decline, and, as mentioned earlier, had the company in a near-bankrupt state. Only by paying attention to recent trends in the industry would Coleco be able to recover.

~3,000,000 units - Nintendo Color TV-Game Series
On the other side of the Pacific, the video game industry was kinking off strongly in Japan, and Nintendo played a major part in it all. While the toy company lobbied for manufacturing rights for the RCA Studio in Japan, they were given to JVC instead in 1974. 1975 saw Epoch Co. produce Electrotennis, kicking off Japan's homegrown home arcade industry. Nintendo was swift to follow suit and release their own Pong clone, the Color TV-Game 6. The machine took off in Japan, but it wasn't until 1980 when Nintendo proved successful enough to expand into the USA.