Bi-wire: is it worth it?


I am about to buy a sweet set of used martin logan stats. They have four terminals, and can be bi-wired. Someone has suggested I should bi-wire them. However, this would come at an additional cost, as I would have to buy new speaker cables. Does bi-wiring make a noticeable difference?
elegal
"huge mark up"

No doubt. Accessories are way more profitable than the main workhorse components. That's always been the case. Retailers know this and depend upon it.
I purchased a set of Nordost Heimdall 2 speakers cables with jumpers a couple months back but have not had a chance to use them as of yet. I still have my older MIT terminator 4 and was wondering if i should even bother trying to bi-wire again with the Nordosts.I guess I should just experiment but was wondering if mixing the cables would be a detriment to a systems overall performance or if anyone has mixed speaker cable brands for their systems. I would think most of you would say just use the more expensive Nordost soley with the jumpers.

As far as bi wiring goes, IMHO, I am not sure lol. I have only bi-wired with the MIT's so I have really no idea if I gained anything from it all. I would imagine that Nordost's philosophy is not to biwire since they do not seem to offer a biwire configuration at present. Please do correct me if i am wrong.
I ran a pair of bi-wired Nordost Heimdall 1 speaker cables about a year ago or so. So Nordost did used to make bi-wire cables. I'm not aware if they stopped making them.
Nordost still has 4Flat biwire speaker cables in their product line. I wouldn't be surprised if the other lines could be ordered that way.

Here's bi-wire Frey, but notice it's on closeout. Maybe Nordost is going single-wire for their upscale offerings.