The spectrum was a far more "complete" machine, with mature software, support and peripherals for quite a few years to come.
If one wanted a 6502 based games machine, the Commodore 64 could pretty much match the wizzard for games performance with 100 times the support and availability of peripherals. (and a decent keyboard)
The wizzard had a nice set of specs for game graphics, but the machine was practically orphaned from the moment it came out. The cassette existed, but more advanced peripherals never materialized...And the membrane keyboard-cum-joysticks were awful.
Another also-ran games console with a handful of in-house clone games. It was
a step backwards.
"dsakey" on trademe. Apple II's are my thing.