But the great thing was they could quickly scale up the manufacturing to the point where these $35 computers were available to almost anyone, and since that time a huge ecosystem has flourished, and still grows, even after wave after wave of clones has appeared.
I remember the Asus Tinkerboard being the first clone board that I thought could _really_ make a dent... but then Asus basically put it on life support. Pine64, BananaPi, Orange Pi, Radxa, et all often make some pretty decent hardware, but the fact that it's often as hard today to get my projects working on those boards as it was with all SBCs back in 2012-2014 means I still stick to Raspberry Pi-branded boards for most things.
Though I hate the closed source bits that power the Pi's Broadcom SoC, and how some of the hardware details can be locked behind restrictive NDAs, I'm happy Broadcom seems to have continued interest in feeding the project over the years.