completist
noun [ C ]
US /kəmˈpliː.t̬ɪst/ UK /kəmˈpliː.tɪst/
a person who is extremely interested in a particular subject and who wants to collect or experience as many things as possible connected with it, so that his or her collection or experience is complete:
You don't necessarily need these new releases unless you are a completist who has to have everything Hendrix ever produced.
In my case, yes. The two most recent examples are,
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I was determined to identify, locate, and photograph every location used in the film BOOGIE NIGHTS.
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During Covid (Spring, 2020), I decided to walk every street in my suburb.
How are they going?
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I've managed to log about 50 of the 55 or so locations used. If the Location Manager on the film would stop ghosting me (I've now reached out to him thru 3 different people), I'd be able to complete this one. :-\
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It took about a year, but I was successful. I found it so rewarding (I pick up litter on every walk as well) that I expanded it into the suburbs on either side of mine. The good or (bad) news is that I live in an enormous metropolitan area (Los Angeles) so I'm going to have to set some limits if I'm ever going to complete anything.
https://i.imgur.com/e1zlGPR.jpg