I wanna try to get back into playing games and VGM listening, but life keeps getting in the way of pursuing the interest compared to years past. But I do agree with what GoldfishX says. I don't think playing the games should be a prerequisite to buying a soundtrack, but I think that's been a trend for me almost since the beginning of my soundtrack collecting back in 1994. After getting Kefka's Domain and the SoM soundtrack, I basically did an impulse buy at a comic convention and bought Disc 2 of the Final Fantasy V OST, after never even playing the game up to that point. I just knew if it never saw the light of day in the US, I'm at least going to "hear" it. And thanks to my new found relationship with San Francisco LaserDisc, that's where my days of buying imports began. Fast forward to today: Tastes variate, but a song or a soundtrack that's good enough will catch our eyes/ears for the most part. Word will spread based on the information super highway that we live in today, versus actually "calling" in my order (was collecting since pre-internet).
That being said, I'm still of the ilk of buying physical copies if the soundtrack is good enough to warrant a purchase, among the last being Cuphead. I'm also still subscribed to CD Japan and the like. So if something catches my eye, I'll take a closer look. Also, YouTube is also a great source, especially if the algorithms detect your listening trends. Stuff might come up in the suggested column on desktop, the "Up Next" section, etc. And with me developing most parts of day, I'm pretty much always listening to the Tube when my podcast fix is done (do they even have a VGM podcast out there?).
With me not being on top of the latest and greatest, I'm pretty much limited to remixes and compilations of scores from the past. Cuphead was a huge exception; they really did their homework and it was a breath of fresh air to listen to on LP. I think I'll have that itch again once I get my gaming room set up in the house, which is a project I see coming to fruition in 2-3 years.