Yes, one can get tired of it, when they get too predictable and un-original for their time. The Ries cycle, which I have on Naxos, is one example of such, often not really so exciting works. Not to mention Field's. On the other hand, for many, exploring the piano concerto genre is how they start to like classical music, and a more or less completist take can be an ambition for some; it is only recently, that I've started to look at newly found, really obscure 19th century works with a little less interest, after decades of otherwise collecting them ...