In truth, do to your own as you see fit, but it does hurt my heart for a few reasons. First, I have no visible path to ever owning my own place, though I don't dismiss God's divine intervention to do the impossible. Therefore it is painfully frustrating to watch those who are blessed with such things do what to me is a destructive waste. Second, when my roommate and I were looking to move together and she was planning to buy a house, it was frustrating to find that so many of the houses in our meager price range had, had the yards so destroyed. (You might want to note a possible correlation there, by the way.) This was particularly frustrating because our last house had, had the yard done to it so, though the grass had grown through anyway. It was quite a mess and made it difficult though necessary to mow. It was therefore also quite apparent how such things become knotted and are not easily undone by those who come after. Finally, I don't know how to be anyone else and to me gardening is one of the biggest joys in life. Therefore I can't imagine anyone wanting to destroy something so valuable on a level that transcends even money. And because of gravel's aforementioned practically permanent transformation of a landscape, such a behavior is on par with a football fan finding that their house's previous resident had destroyed the TV and in away that it could never be fixed or replaced. Therefore please forgive my razzing you about your affinity for gravel, but also understanding the truth behind it.
I hope you get your house someday even if you do destroy its precious green space with gravel. Surely you are more important than the yard