The one that confuses me is the ever present argument that 1's and 0's have no value. Therefore any purchase of digital items is nothing more than a complete waste of money. We are all just being conned and scammed out of our money by every developer to offer such goods.
Even if we completely ignore the deeply philosophical (but true) statement that nothing is real and everything is just our brain interpreting electrical impulses, we still have the fact that the 8+ billion dollar gaming industry quite clearly states that 1's and 0's actually do have value. When it all comes down to it, you can achieve just as much fun from a digital purchase as you can with a real world one. You can show it off to your peers just like a real world purchase. You can illicit envy just like a physical purchase. You can even resell it for real money, just like you can with something you bought from a real store.
So while it's true that these purchases don't really exist in a physical sense, the feelings and sensations they bring are very much real. The enjoyment they facilitate and the fun memories they help create stick with you just like any other. That's what it's really all about, isn't it? That's the whole goal, to generate as many happy memories as we can before it's over. When it's all tallied up, is there really a difference between the happy memories of a owning sports car vs the happy memories of owning an idris?
Honestly, from my perspective as a gamer, it seems like an Idris would be a much wiser investment. I could spend $50,000 on a sports car that I would rarely drive. Even then, I couldn't drive it the way I wanted without risking the loss of my driver's license. Or, I could spend $1,500 and generate hours/weeks/months/years of fond memories full of shenanigans with friends.