Well, as I showed - it's hard to get a really high LPE without the right cards. And to get the right cards, you need to have money (or be playing for a long time). That's why I did the simulation with Beta Rare RF, since those are currently the most efficient ones in PP/$ ratio - but they're not the best to get a high LPE. For that, one needs Alpha/Beta GF, and those cost quite a bit, which is a hassle when one is just starting out.
Even my simulation is a 500$ spending to get 2 plots running - for me, that is a lot :-D