Like I said, close-minded. It's not considering the alternatives, and fixating on your own notions as the only option. Sure, your option is a viable one, absolutely, but so are others. Some people don't want to carry 30000 caps just to give away 4000 of them every time something needs a little bit of maintenance in lieu of being prepared and getting the same service ANYWHERE at any time, without the need to visit a specialized NPC, for less than 20 caps. Again, what you suggested implies that spending 2 Perks is somehow a better and more practical idea to alleviate the convenience of 1 Perk because you don't like the method that 1 Perk specifically benefits the most. Your suggestion falls in line with an alternative method that you prefer, and that's fine. But that doesn't make it better, and it does absolutely NOT affect its alternatives, nor does it render them "obsolete".
I play with a robust cornucopia of supplies on my character at all times, simply because that's how I prefer to play. I dump the excess quantities of what I'm not going to put to immediate- or relatively soon -use. The excess stays in cabinets and fridges and boxes in my suite at the Lucky 38, and until I acquire the suite they bounce back and forth between drop boxes. I always have supplies on hand to make the most of practically any situation, as that situation arises. I don't need to go anywhere to address my needs, so wherever I go is wherever I need to. That manner of play is the most convenient and efficient way I find and it suits me best, but that doesn't make other methods "obsolete". They're just methods I don't like. That's the point.