I feel no more betrayed than I did when Nintendo dropped Gamecube a mere 4 years after launch.
I bought Wii U at launch and, like Gamecube, I've had an amazing time with it. 4 years plus change of incredible gaming. Truly one of the best consoles I've ever owned, despite its shortcomings, simply due to the amazing library.
Lack of BC aside, the Switch has the potential to host games just as amazing as Wii U's, if not more so, and I look forward to finding out just what they are.
Gamecube is light years beyond the Wii U in its library though. Gamecube I have no regrets about.
2 excellent Metroid games, the best F-Zero with GX (one of my favorite games of all time), Fire Emblem, 2 Zelda games, Mario Sunshine, 2 Pikmin games, a real Animal Crossing, best version of Killer 7, best version of RE4, both Baten Kaitos games, Eternal Darkness, Chibi Robo, Custom Robo, Geist, FF Crystal Chronicles, Luigi's Mansion, P.N.03 (looooove this game, there still is nothing else like it), Star Wars Rogue Squadron 3, Ultimate Muscle and Wario World. Maybe I'm missing a few here.