Want and need are absolutely different. I guess buying a BW or whatever else in the around or above 4K department means you get a little bit more than in the 2k department and it’s up to you to decide whether the amount of “more” is worth not doing whatever else you would otherwise do with the 2k difference. The two basic reasons why your answer might be “yes, it is” are either that the “little more” you get is so important to you or because you don’t have to refrain from doing anything else you want anyway cause 2k doesn’t matter to you. Both reasons are fine. Other people spend 5k on a nice dinner for two or 20k on a 1 week vacation. Perfectly fine, no judgment.
As for your initial question, I’ll buy a new rifle that I don’t “need” if it intrigues me enough I guess, definitely not because I need another one (I didn’t need the last 5 I guess… and if you ask my wife that number is even higher). Maybe it’s new tech I want to check out, maybe it’s a different form factor or maybe it’s making crazy power out of little air. Maybe something else that got me interested. It is definitely not because I believe that it’ll be more accurate compared to what I already have or because I have to fill a gap as to “tools”. In summary you could say it’s out of curiosity I guess.
lol 
