Same here. Kadabra was my first level 100 Pokémon. I was obsessed with Kadabra at that time. I watched the anime episode in which Sabrina and Kadabra appear, and I just had to catch a Kadabra after that. I caught one near Lavender Town, and I trained it over and over again. I was positive that Kadabra would evolve into Alakazam, eventually.My very first was a Kadabra in Blue. Caught it as an Abra at level 8, then put it in Day-Care until it was level 14. Then, as I played through Blue, I leveled it up like crazy, even destroying the Pokemon League many times.
I was hoping Kadabra would evolve to Alakazam by level (very early days of my fandom), but naturally, it didn't. However, that's how I learned of the level 100 cap.
I beat Gary with Kadabra alone the first time, and it was around level 70. That pretty much proves how broken the Psychic type was in the early games.