I don't consider cheesecake necessarily to be a cheat. The ingredients are pretty good when a cheesecake is homemade--eggs and cream are main ingredients. You can avoid the crust if it has wheat in it and if you make your own you can make a better crust using nuts and dates.
There's some pretty darn good vegan cheesecake I eat often from a company called Earth Cafe. Main ingredients are cashews and coconut and the crust is usually pecans and dates. I'd consider this a dessert or a treat or heck once in a while I consider it lunch.
I think it's important to get away from the "cheat/punishment" cycle that we women are so good at. That's why I think if you enjoy a piece of cheesecake you do not need to then punish yourself the next day with starvation and deprivation. Just resume you healthy primal eating and don't eat if you aren't hungry.
Female, 5'3", 50, Starting weight: 163lbs. Current weight: 135 (more or less).
I can squat 187.5lbs, press 75lbs and deadlift 200lbs