Irony can take many forms and can take a long time to reveal itself. I remember the magazine PCG (Personal Computer Games) ran a joke article around 1984 that a company was trying to develop a ZX81 simulator (sic) for the ZX Spectrum. It depicted the developers notes in diary form as to the problems encountered during the building of, what could only be considered at the time, as something no-one would want. Why would anyone want to run an inferior machine on a new, more powerful one? Cue hilarity.
Given that I have a computer at home sporting a dual-core 2GHz processor, more pixels than you can shake a stick at with gigabytes of memory running a ZX81 emulator (the excellent EightyOne), you've got to love the irony that time can provide.