Right, but think this way. If the guy has iso files, dvd's in bulk are what 25 cents each? If he can bun one each time someone orders one not knowing what they are buying, think in terms, he sells for 7.99, 7.99 minus 25 cents, maybe 10 cents in ink to print a label, and maybe 1.50-2 bucks to ship. Making essentially 5 dollars a pop. What if you can sell 10 a day or more. 10 per day at 5 in profits is 50 bucks a day. If you start selling items like repair discs maybe really customized linux distros, and only make the windows repair discs not the installer ones and sell those at 3-4 a pop, think about it it. Move enough you aren't doing bad, and then even if you were a pizza tech, between ebay and low rates on those, you could still make a living probably.
Just noticed he claims to have the Windows 8 discs also.....just saying.
In fact I have even found a universal Windows 8.1 disc on there. Tempting actually lol.