For me there was never any doubt.
A bit unrelated, but I've got an old 5150 at my parent's place, so when I'm visiting next Xmas I'll try to load this demo onto it. The only problem is that of transferring files to it. It only has a 5.25" floppy drive, and I don't have a means to copy files onto those floppies.
Any suggestions?
I ended up typing it in 1k at a time, and independently typing in a CRC32 utility to check that I'd done it properly.
(That was to install Windows 98 on a computer with no drives, if I recall. So, not so very long ago.)
On the phone, hex dump in S-record format, then read out loud while the other side would type in the line. Checksum matches? Next line...
Our respective parents were not too happy about this unplanned usage of their phone lines but it saved a ton of cycling.