In today's digital world, would you really need a physical copy to play and another sealed physical copy to keep? Especially of a game that has been available digitally and for a cheaper price for a rather long time and that you could have played ages ago? It would easily be enough to get just one physical copy later on to display on your shelf.
I mean, 15 years ago, you would have largely had no choice if you want a sealed videogame collection (for whatever reason), but nowadays, that's not really the case. That's not to say that there might not be legitimate reasons to want 2 copies other than profiting off of them (even though I think 1 per person per platform would suffice).
Anyway, I don't really care either way, but that's probably down to the fact that so far, none of the games offered by LRG have been interesting enough to me to even try to get a copy. I imagine I might feel differently when there's something that I want.