Why don't DVD players -TV monitors upgrade PCord

The high end dvd players have iec connectors (e.g.Proceed).
My Pioneer Elite RPTV just had a hard wired lamp cord .... bummer. So, I took the back off, unsoldered the cord and soldered an IEC female connector in its place and used a good PC. I really felt that it made a difference. Its not that big of a deal. The connector was a few dollars at the electronics store.

Thanks Tireguy, that is good to know.

I know cheapness is a factor. I have looked at Harmonic Tech Adaptors and good solution for small adaptors. Even considered for a way to rewire, rather than directly attaching new PC altho' seems to be same solution as female IEC and lots more economical. (the Harmonic Tech dealers on AG can get them -$60). Looked at upgrade Modright - looks like upgrade is primarily to benefit analog audio output. Thus, I still wonder how much benefit for picture quality DVD and TV. The Tice IIIC and Solo Video helped immensely, I wonder if there is more to tweak (I must get a life....). Thanks...Ed

I think the company Vantage audio makes power cables for the small input, may be worth looking into. I forgot to mention this in my first post.

At the CES I saw a high quality replacement cord for two prong DVD players, TV etc at the Audioquest booth. Knowing Audioquests other products this should be an excellent upgrade choice.