Did you ever bought a game on steam without any reduction ?

I bought The Witcher III Wild Hunt for a full price, but not on steam.

75%+ is the golden rule for the most wanted games.
The rest only when they reach 80%+ or get decently bundled.

I still am angry for buyin' in day one Forza Horizon 4 Deluxe for 100 euros, but at same time, I enjoyed the game alot, and I even am tempted to buy the 5 one, but probably I'll wait for a discount.

Those that I remember:

The Witcher III, Grand Theft Auto V, Tekken 7, Assassin's Creed Origins, Resident Evil 7, Metal Gear Solid V, Borderlands 2, technically Dark Souls, XCOM, Dishonored, The Elder Scrolls V: Skyrim, Batman Arkham Knight, Street Fighter V, Tomb Raider

Aside from Arkham Knight due to technical issues and SF V as online didn't work for me out of the box, I don't regret any of my purchase. I had fun and got my money's worth.

Only one. The first purchase I ever made was Beyond Good & Evil (4,99€ full price) to try the Steam platform. And it was my first digital delivery purchase
After that, only purchased games on sale (at least 75%) or bundle, always.

Unfortunately yes. :(

I used to back in the 90s, but the way games are released now + life, not anymore.

Plenty of times, most of the time these were gifts to friends.

I bought Kenshi and Valheim without discount.