That's the seller point of view, you can say "you missed it" and the potential buyer can say "i have the money".
The problem with your theory is that it is the same used by the ones who do shill bids.
They think their domain worth something or they expect some certain money for it, and instead of starting bids near the price they want, they start low, and then if it doesnt have so many bids, they do the trick. They also can do it just because they are greedy and even if they were happy with $100 before the auction starts, if they see that it reaches $100 easily then they go for more and more.
And let me remark that i am not saying that you do this, just that it is the same theory they use "if you are willing to pay $100, then pay $100" it doesn't matter if at $20 he is the only bidder.
It can happen very easily with small or micro niches, maybe your domain is wonderful, but there are 3 peoples who promote this microniche following the thread, and 2 of them are busy with other projects so they wont buy it unless its so cheap, and a domain that in another moment could go for mid $xxx doesnt get any better offer than mid-high $xx and there it is were can appear the shill bids.
I have a domain i wanted to sell for mid $xxx and i think it worth it, but best offer so far is $100, and this bidder asked me to contact him if i would get better offers, what does it means? That he is willing to pay more, even i got some little interest around the $200 but they vanished, i told him, but didn't encourage him to bid any higher since they were not genuine bids, just inquiries from someone who i know is a buyer, but was just inquiring.
So, in the end, it's up of each seller how he/she run his/her own auction, and up of each bidder where they feel confortable to bid, and each one takes his own risks, to lose a sale for being greedy (or show your real face contacting the bidder to offer him the domain for a lower price than the shill bids) and the risk of the bidder is to miss a good domain.
