Ok, ok, Mr Pedantic, I meant that was where the culture of wide-spread user app generation started. The culture that gave rise to the community of thousands of developers of Mac OS & iOS apps (and, indeed, Windows apps & Android apps) that we see today.
The Apple II was a fine machine, but it had the same problem as the Lisa; it wasn't particularly affordable when it first appeared on the scene, retailing at US$1298.
The ZX80, on the other hand was - as you yourself said - far cheaper, initially priced at GB£99.95 (approx US$212 at the time).
If the first home microcomputers had remained as expensive as the Apple II or Lisa, personal computing (including "PCs" and Macs) would be a decade behind where it is now.
That is these under-powered, clunky, ugly, semi-reliable jumped-up calculators' legacy to the world.
(Also, it was entirely a Sinclair machine; Timex only made clones under licence.)