Buying new is a far bigger risk than buying used. If the new piece does not live up to expectation you take a 30% hit. If you buy the used piece at the right price you are out shipping cost at most. Case in point - I have gone through 4 pairs of high end speakers over the last decade and written off a grand total of $500. Most I used for a few years and resold for what I had into them. I only got screwed once in a decade buying and selling on A'gon (on a cheap cable). Folks here are extremely reliable - look for sellers with feedback. Another piece of advice. Stay away from the very esoteric stuff, no matter how good a deal you get - very hard to resell if you don't like it. Better pay 40-50% of MSRP for say a pair of cardas cables than 25%-30% of MSRP for a garage operation brand. The cardas will resell in a heartbeat, the garage brand you may get stuck with.
Now, buying on Ebay is a different story.....
Now, buying on Ebay is a different story.....