I understand the frustration, but that's not a valid reason to complain about their business model. That is the biggest thing to keep LRG alive and allow them to get as big as they are. On the plus side, as been stated many times, they do not prevent the game developer from releasing the game again through a different publisher, and this has happened many times with some of the bigger named titles.
You have a limited window to get these games, and depending on your situation, that might suck. But your choice is between that limited window, or a digital only release. The limited window is by far the lessor of the two evils.