Free: Contests & Raffles.
To each their own. You could ask me this question 10 times during a given year and possibly get 10 different answers. I do agree with the comments about all being trophies, they each represent the culmination of preparation and opportunity that tell a story for years to come.
Everyone's goals for their hunts change over time as well. Most hunters that stick with it for life go through 4 or 5 phases during their hunting career. Mine went something like this.1: There was a time when it was all about making the kill for me. I'd shoot spikes, 2 pts, whatever, there was no legal animal safe from me. 2: Then I got older and it became less about killing something but more about bringing that meat home. I think we're on a cool decade now of eating only game meat minus chicken and bacon in my home. 3: More recently, last 3-4 years, it's become more about the adventure, the camaraderie, and hunting more mature animals. I'm confident enough in my abilities now that I will pass legal animals now looking for a grade better. Later in the hunt, sometimes not much later , I'll still kill a smaller animal to make sure I'm bringing home meat for the family. I can see #4 on the horizon now that I've killed a few bigger mule deer and gotten a taste of hunting bulls out of state. I also have a new hunter hopefully rising in the ranks that will be getting trigger time in a few years so my priorities will shift dramatically at that point. Anyway, there's no right or wrong answer, it's different for everyone and that's great. You do you, don't worry about everyone else's reasoning. I know a couple of guys that are getting up in years that were tremendous deer and elk hunters in their day, but are now very content killing small bucks close to the road.