amok: I would never play a game just to "click it off as completed". Gaming is a hobby, not work (even unpaid wwork). If I am not enjoying it, then I have no problem abandoning the game and play something else I like instead. I see no point in doing anything else in my spare time, which is precious enough not to waste it on bussywwork and tick-box completion that noone would ever care about and have abolutely no impact on anything - whats the point? .
The same goes for all my entertainment. I stiop reading a book if it is not good, I stop watching a film or a tv series if I am not enjoying it, I stop a piece of music if it is boring, I leave a musem if I dont like the exhibition. I do not see the point in wasting my time for something that is supposed to be for enjoyment only.
I don't disagree with you for the most part.
But there are plenty of folk who are in the habit of ticking a game off as completed, for one or more reasons.
For instance, there are folk determined to play every FPS game, and some to play every classic game. Some do so for comparison purposes or writing reviews, etc.
It is also possible to like a game for a variety of reasons. So a game can be thrilling, and so generally easy to complete, and sometimes it can just be interesting and maybe take a while to complete, and life etc can get in the way and interrupt for a while.
Generally for me, something has to be pretty bad for me not to complete it. And how I feel about a game can vary from day to day, just like it does with music and movies and books. Sometimes it is just all about mood, and I don't believe in setting hard and fast rules, but remain flexible.
As we have all seen or experienced, some folk who review a game, later wish they could edit that review. Maybe they hated the game initially or thought poorly of it, then later grew to love the game or had a big break and eventually came back to it, and perhaps they are in a different mood or had something happen to change how they see things ... growth, education, etc.
I've read a lot of books, that had boring starts, but then became brilliant. If I hadn't persevered I would never have discovered that. You can also start with a bias that can eventually be dismissed. I try to avoid being too judgmental without enough facts or data.