hah, certainly consumer choice largely ended.
It blows my mind how many computers existed in the 8 bit era, each with significant software libraries of their own. Spectrum, The commodore and atari machines, msx, amstrad cpc, bbc micro, undoubtedly more stuff I am forgetting about 
Yeah, there were a lot of them back in the Elder Days. Just pick up a copy of Byte, Kilobaud, or Creative Computers from that era. I had an Atari 800 and later a 1200XL. I can remember seeing the Exidy Sourcerer in the store, complete with software carts made from recycled 8-track tape shells. ;-) . Even saw an apple I board.
Of course in those days, having a computer was a goal in itself, not just a means to an end like today.