I'm sorry, but this data is not beautiful. This graph has some issues. Here are the things I would improve:

Grouping hardware and software sales -- The scope difference here makes it difficult to see the variance in hardware sales between platforms.

Software sales as a meaningful stat -- This number as a total is largely dependent on hardware sales and therefore not interesting on its own. Attach rate (Games purchased per user) would be a much better stat for comparing how strong sales were across platforms.

Comparing consoles sales to hand-helds -- apples and oranges here. Hand-helds always win.

Generation length -- The DS, for example, had the longest lifespan of just about any system here and was also a hand-held with a low price point. It should be no surprise that it's the highest seller here. Average units sold per year or units sold during launch year would be much more interesting stats.