The TS1000/ZX81's price advantage was erased when its main rivals – the Texas Instruments TI99/4A and the Commodore VIC 20 – had their prices cut to below the all-important $100 mark.
A vantaxe do prezo do TS1000/ZX81 foi borrada cando as súas rivais principais—o Texas Instruments TI99/4A e o Commodore VIC 20— tiveron os seus prezos cortados por debaixo de 100 dólares.