How cam Morrow Audio keep offering 45%-65% discounts for trade-ups?

Pretty easy ,most of their raw material is from China 10-1 markup in many cables 

that’s how they can do that and stil make money , and their connectors 

inexpensive gold coated brass , unless you want to pay a premium .

@audioman58 

You make a good point. So many of these so-called "premium brands of cables and speakers are using these beautiful jewelry-like RCA's and binding posts which are heavy brass instead of low mass copper. It looks so pretty but it's not built for good sound.

I have never bought from Morrow, but have always wondered about their quality and their sale after sale after sale.

roxy54 good observations , myself having owned a Audio store and 40+ years in Audio I have seen it all . I tell people even regarding fuses 

and especially AC outlets get rid of these Huge bottlenecks resistance= noise Petiod , look up metals conductivity index , Silver, Copper ,Phosphur Bronze , 

67 is the highest , then Brass way down around 22  3 x more resistance, =3x less conductivity easy math , that $2 wall outlet most homes have it 💩 crap , get rid of it , look at the $99 Pangea gold over High purity Copper ,and grips like a vise verywell made give it 75-100 hour breakin  a clear step up in clarity

and these junk brass zinc $2  outlets from home depot corrode inside and rust 

these are less then 15 on the conductivity scale , we have literally tested its conductivity, the best power cords ,and line conditioners mean very little when you have a bottleneck from the start, even in your equipment I don’t get it. Use aFurutech Gold or rhodium over copper IEC , instead these $4 pieces of junk even in  $$ brands I remove what I can , even all my speakers WBT connectors 

and change what’s possible on my equipment , most people don’t even give it a thought ,after my tech friends pointed this out 

I went with awg 10 copper with dedicated20 amp circuits 4 wire ,one common ground the other a insulated Isolated ground with its own buzz bar grounded separately , back grounds now are dead silent.

Cables are a very high profit item. The markup is incredible so any "discount" applied still makes them, and every other manufacturer, a lot of money.