Ultimately, we come back to "Fitness for purpose" and "Buy cheap, buy twice"
Years ago, because of budget constraints, I bought a really cheap socket set. the most used socket soon wore out.
Compare with my late father's pre WW2 Britool set, still very useable over 80 years on, but much more costly.
A spanner that "feels" right, comfortable, and does the job well will be selected for work more often than a similar tool. A cheap tool, rarely used may suffice, whereas one in regular use needs to be comfortable to use, durable and correctly sized.
A loose fitting open ender on a stiff fastener is short cut to the First Aid box!
A quality tool will outlive a cheapie, and withstand all manner of abuse.
For my use, now, Facom, Snap On etc would be an expensive overkill. But there is still no use for tools made out of metallic plasticene!
Howard