No,
consumers should be concerned, because these huge companies have already started gobbling up developers and publishers, but none of them have reached the plateau as either Nintendo or Sony. That's a disappointment that so much money has been spent, and yet there's little to show that benefits video game players.
You're approaching this like a business analyst, who unfortunately does not truly understand the business.
It's not a matter of how much money you spend, but rather how wisely you spend your money.
Sony only acquired one development studio in the last few years.
That studio had a long history (going back over two decades) of working with Sony on games exclusively for Sony platforms. Their last game was a Sony exclusive that came out about two years ago. In the period of two years, it amassed a staggering amount of sales, moving over
20 MILLION units.
Sony only spent about $229 million to acquire that studio.
You're tossing around the big numbers, but have those developers and publishers delivered on that level? It doesn't matter how much money that Microsoft/Google/Amazon spend, if their studios are failing to produce games that consumers want to play.
People keep bragging about how Microsoft owns 23 studios (more than Sony, more than Nintendo...maybe more than both of them combined)...
yet all of them have failed to produce even one new, exclusive game for the launch of their new systems this year. That's a management failure.
It's worth repeating again:
It's not a matter of how much money you spend, but rather how wisely you spend your money.