Basic cable question

Of course he told you that.  He's...the...Transparent...salesman.

Seriously, some argue for loom consistency throughout, but the majority don't go that route.

It's good the you can see right through him.  
Like said, you don't need to stick with the same brand. 

All the best,
Nonoise

Truth be told:
I fell into the Transparent void early into my reintroduction to hifi after 30+ years.
Here is what I learned-
Cables are very system dependent. What works in one system might not in another.

Since I don't know what equipment you are using, then it would be impossible to gauge if Transparent cables would be a positive choice for you.
What I can say is that there are very many choices (and God knows you'll get a myriad of responses here on Audiogon), that will provide you with similar or possibly better results at a more reasonable cost.
So, please let us know what you are using. It would help narrow down the choices... Well, maybe....
Bob