Nice, hedonistic attitude. I totally approve. If it works, one shouldn’t deny themselves. If not, that’s another matter. Sadly, sometimes our desires and plans or what is right for us are in conflict.
I find good eggs tastier 
I have read eggs can have very different nutrition value too and anyway, I can get good eggs so I will get those.
Yes, I imagine it’s very typical regarding most food, for most people. I definitely can get bored of eggs but I wrote about that in my first comment. It takes a lot, I really love eggs, they are very versatile too… If I don’t use variety and especially if I use it in a form I am not so much into (hard-boiled eggs. useful but not my fav), I get bored of it way easier. But it’s stronger with cheese: while I don’t get bored of it ever as I never eat much of it, if I eat it rarely, I enjoy it way more It probably happens with eggs too in the case of many people. Not me as I horribly miss eggs if I skip days. So I don’t. But if I eat very many eggs for days, I truly don’t desire it so much so the number drops. And if I don’t eat many for a while, my desire grows and I end up eating more again…