I want to buy new speakers for 50,000 and see it used for 30,000, what should I do?

The amount of markdown you can secure when buying used audio gear, like in other markets, depends on various factors including competition and current market conditions. For example, before COVID-19, it was easier to get a 20%-25% markdown below MSRP when buying a car in a buyer's market. However, the situation has changed significantly now.

When it comes to audio gear, in my area of West Palm Beach, there's only one dealer carrying high-end gear, and his prices for new items are fairly firm. However, he's more generous with discounts on used gear, which helps on his cash flow. Negotiating more than a 10% discount on new items is difficult, and it largely depends on the brands.

Like I thought you haven’t made a deal. And go look at the discoun5s offered on demos and discontinued lines versus blathering it's 20-30 %. Look at the Sound by Singer demo sales page as an example. Seeing an add at a discounted price isn’t walking into a dealer and face to face working on a deal on new speakers.  so save the chest puff commentary

The OP needs help making a decision; but, he'd be a fool to reveal the speaker that he's considering because someone more decisive could swoop in and buy the one that is currently on the used market. So, a tough mess to untangle.

@emergingsoul , have you seen the ad on The Music Room website for a pair of Rockport Technologies "Cygnus?" This model & finish lists for $70,000; and, it is for sale for $44,999 (+ 1599 shipping). The last sentence of the Soundstage Network review is: "You can buy these and never look back."

The OP needs help making a decision; but, he'd be a fool to reveal the speaker that he's considering because someone more decisive could swoop in and buy the one that is currently on the used market. So, a tough mess to untangle.

Yeah right ...No such thing in the high end...it is always a buyers market and a desperate seller or dealer 

So many great comments.

I guess the overriding concern that I have is that I think everyone knows speakers can be very overpriced and that’s really absurd.

Manufacturers create subpar speakers at lower price levels and tempt you to buy higher priced speakers that sound better. It’s a con game. They are taking advantage of the seductive nature of listening to things that sound really good to us. It’s affecting the part of the brain that lacks the good judgment when it comes to spending money.

Think about it, why are we being encouraged to spend $50,000 for the type of speakers we all should be listening to.