Generally speaking I like the idea. Buying something good that will last for a long time (or indefinitely) appeals to my frugal nature. Also it appeals to my survivalist tendencies. If things are moving along like normal and a tool or piece of equipment fails you go pick up a new one. However if things are not normal you have a problem. This also suits my minimalist nature. Aside from some key redundancy (don't like relying on a single anything) I am generally willing to have less stuff if I know it will not break. Instead of a whole box of $5 junk folders I can have a couple good backups.
The question of when this applies is what I have been thinking about the most. I suppose it comes down to three main questions:
-What is the price difference between the right answer and the more affordable (or convenient or whatever) alternative?
If it is a matter of a small amount of money like 10-25% to me the answer is easy. On the other hand if the difference between the two is more like 50-100% or even more (like night vision) the question is more complicated.
For example once I got a .22 rifle. The Remington 597 was a little bit cheaper than a Ruger 10/22. Being stupid I bought that piece of junk instead of saving another $40 or whatever. I ended up giving away the 597 and getting a 10/22 down the road but that is another story. The point is that I should have been smart and bought the much better but slightly more expensive tool and been done with it.
-How urgently do you need the item?
If you are moving to Alaska and it is November you need a really warm coat right now. In this case you need to buy an old milsurp parka or something as you obviously cannot wait until you can afford the coolest big name outdoor parka. If Jimmy Crowbar is after you then saving up for a few months to buy a Glock is a bad idea. Instead you should scrape up enough cash to get a used S&W .38 today. On the other hand if you are upgrading a tool set or a firearms there really is not any sort of urgency. A nicer set of box end wrenches would be great but you are getting along fine now.
Project Upgrade AR falls into this category. I already have a functional long gun so there is no reason things must be rushed into buying less than what I want. I want to do it right and not have to mess with it again. If the right part(s) mean saving for an extra month that is not a huge deal.
-Does this item fit well with where you are in life?
The whole debate is pointless if you cannot afford it. An XX dollar difference might be a deal maker for one guy and not an issue for another. Should those dollars be put into savings or divided into a variety of areas?
Anyway those are my thoughts on that.