Did you do this with shareware discs in the 90s? Did you do this with Quake, which was distributed on a CD for ~$3 as a shareware version with the full version on the disc, able to be unlocked for $40 if you called a phone number?
We weren't paying $60 for shareware discs. With the general lack of content current games are shipping with (for whatever reason), I consistently feel like I'm being asked to pay more for less. DLC of any kind is usually no more than salt in my wounds.