The foremost point is - how do you differentiate a Reseller from an End User ?
Is it the thinking that one who pays good amount without negotiation is an End user and one who bargains a lot over small offer price is a Reseller ?
I have seen this proving wrong many many times.
Most of my Crypto domains were bought by Resellers in high figures. I came to know later that they were a Reseller when they put them again on a landing page for sale the next day.
If you are talking about interacting with your customer, Dan.com landing page proves to be the best option for me, because you are interacting directly with client before the price is agreed, yet under the roof of a third party marketplace.