Regarding that video -
I'm a big fan of spending more money to gain quality.... but there's a catch: that only applies when the quality gained is meaningful. A Lexus is higher quality than a Toyota, but if I just cared about having a car that could get me to work, then the quality gained by spending more money on a Lexus wouldn't be meaningful to me. I'm the same way with electronics.
Some people will frame the decision to buy a less expensive "knock off" doohickey as a evidencing a "cheap personality". I've never understood this. Are you a cheaper person if you own 3 small homes in different cities, instead of a big house in just one? At the end of the day, if you save $20 on some particular piece of hobby gear, you're probably just spending it on another hobby gizmo instead. That's not "penny pinching", that's just "alternate penny distribution".
I'm a big fan of assessing decisions based on logic, rather than on emotion or rhetoric. Ask yourself what qualities you need in a particular item, and then assess what you need to spend to get it. If you need a rock solid charger that will give you as close to bulletproof performance and safety as can be achieved in a consumer product, with life-long durability, then maybe you should spend $40 on the original item with its "scratch away validation numbers" and the "online system" for registering and verifying your unique code of authenticity. If you need a charger that will be moderately reliable and charge cells for you in a non-mission critical setting, then maybe the $20 clone is okay.
With the exception of the missing reverse polarity feature, nothing about what that fellow in the video showed us would have been a deal killer for me. I don't care if it uses a different IC package than the original, if it works. I would care about whether it thing does what I need it to do.