Toshiba keyboard badly wired

Hello,

Why Toshiba keeps making and selling bad wired key board?


This happened TWICE to my Satellite L505-S5971;

I had problems with a vertical line of keys on the key board, so, I replaced it with a NEW Toshiba Satellite key board in 2015, it worked for half year, then started having on & off issues on
A). typing problems with keys of "m", "j", "u", "7" etc,
B).no up & down actions on keys of scroll up, scroll down.

Today, it is totally dead.

Note: it is a wiring issue;
This time, "m", "j", "u", "7" are all on the same V line,
Last time, it was also the keys on a V line in same area.

Fine, I might get bad luck the first time, I got another bad luck on the 2nd key board again?

Come, why Toshiba keeps making and selling bad wired key board?

Now, I a trying to buy the 3rd key board in eBay, just don't know how long this one will last?

Shame on you Toshiba!