I'm still not convinced because the content seems so ambiguous. If there really are no commercial games on there (and lets face it, that is what Marz is after), I would definitely say the CD is not worth it. The guy is basically selling the emulators and the PD roms, both of which are illegal. A lot of the PD roms for systems like the SNES or the Megadrive are tiny technical demos - hardly something most people would use a great deal.
As for the freeware or shareware - a lot of shareware can be crippled to an extent that it becomes effectively just a demo, and if the freeware is so good, why doesn't he post screenshots? IMHO showing screenshots of something which is not on the CD is blatantly attempting to mislead people, no matter how many warnings there are about their actual non-existence.
There are actually some fairly good deals on Internet access in the UK, and it is quite possible to get free net access anytime for very little. Or better still, get a job and use their internet access!