I'm what you would call a fair weather Pokmeon Go fan.
Shortly after launch I tore the game up, reaching level 20 in record time and dominating nearly all of my local gyms with a boosted Vaporeon. But when everyone else fell off several months in, I followed suit. Scattered, hollow events would occasionally drag me back in for a few days at a time, but it was the recent promise of legendaries that truly swayed me.
I'm a little late to the party, but I finally acquired a Pokemon Go Plus accessory this past week. I mean hey, you can't fault me for a lack of trying -- despite several media requests and constant online outlet camping, I just couldn't procure one for months. Now that the drought has finally ended (everywhere but Amazon basically) nearly everyone can get one if they want.
You should, too, if you play multiple times a week.