I think sometimes you will get to a point where this item will work OK. Then you will want it to work a little better, be a little easier to use, better finish on parts, better metal, or maybe just look better.
It will cost a certain amount to get that "works Ok" item. To add the refinements, (better fit, material, looks, etc) are a added cost but not in relationship to the overall cost. It cost more for refinements then it takes to just make the item. Rather it be more expensive materials, more labor cost for hand fitted parts, etc.
The final product will be up to you as to what you want. Being in the construction trade, I can do with cheaper tools then I buy. But I will pay more for a tool that is easier to use all day and will make my job easier and more efficient. I will pay more for a pair of pliers that has been better fitted and polished metal because I use that tool all day. I want the easiest tool to use. I will pay more for better grade metal in wire strippers and a more polished finish because I use them all day and they are easier to use. Can I get by with cheaper tools? Yes, but I would not want too. I want the best tool I can afford to do my job as effortless and efficient as I can. That little bit of different can cost twice as much.
Hairdressers spend a few hundred dollars for the shears they use to cut hair. They could cut your hair with shears that cost half as much. But the finish and ease of use would not be there. They want the easiest to use that they can get, just because at the end of the day it will tell.
The final decision will be up to you, just how good a tool do you want for the job you are doing? If you like fine tools and just like the best is one thing. And that is Ok. But if it is something you use often or daily, would you not want something a little better made or easier to use?
Those cheap china made wire cutter will cut wire, but at the end of the day I am very glad I paid over twice as much for my Klein's.