Since search engines regard inbound links as recommendations, these links have a decisive influence on the ranking. The search engine definitely doesn’t appreciate link networks and won’t give new projects a jumpstart by allowing a former website’s backlink profile to be used when registering a new domain. Using an expired domain is like playing with fire, where the worst case scenario is that you’ll be penalized or be excluded from the search index.
If domains are real estate, then the same rules of real estate should apply. In real estate, taxes are based on the value of the property. So, a person asking $10,000 for a domain shouldn't be paying the standard $15-30 renewal fee as a person asking $200. The renewal fee should be based on the domain's value. Domainers want to claim it's like real estate without applying the most fundamental rules of real estate.
There’s an important distinction to make here between domain flipping and website flipping. The latter mainly refers to buying and selling full websites. By full websites, I mean websites that actually have content and more often than not have traffic and revenue. When buying and selling websites, the domain name matters less as the main value there is the content, traffic, revenue, history/reputation, sustainability and growth opportunities. The same can’t be said for domain names where you’re just selling “the name” and hence it’s all that really matters.