I'm 100% guilty of trying to obtain the best sound possible, but I put limits on how much I will spend. Not how much I could afford, but what I feel is approaching the area of diminishing returns.
When I got seriously got into this hobby, there were no forums, etc. The best I could do was read magazines. My goal given limited funds was to obtain the highest rated equipment in Stereophile's recommended components. Mostly class C, occasionally class B. My first decent system was an Adcom GFA555 amp, NAD 1300 preamp, and Vandersteen 2C speakers.
While I certainly read reviews and forum posts, most of my gear choices have been based on my own research. I've had a few duds, but for the most part, I think I've made good choices.
I'm now tweaking with cables. Nothing crazy expensive. Mostly used because it seems to be a great value.
But, the music is the key. It all started with jamming to 8 track tapes in my 1970 Dodge Super Bee..