I went to expireddomains.net for the first time anad looked at the massive list of domains but am having trouble figuring out which metric or metrics I should look at first to discern whether it will be worthwhile for me to buy them. Is it how many backlinks they have? I figured this probably isn't since they could be spammy links. Is it the domain age? Is it the Alexa rank? Is it how many letters it has (but only if they're real words)? Is it the traffic? What if it's not authentic traffic or high quality? Is it the appraisal figure given? not sure where they get this number from. I'm new to all of this and was wondering what the experts who are in this biz look at when it comes to metrics like this.