I don't mean to be unfriendly but your question strikes me as kind of.. odd. Would you approach a stranger and ask how they manage to afford their boat/car/vacation house/Rolex/kid's private schooling, etc ? That's not generally considered polite behavior in this culture.
If you are feeling frustrated about the "high cost of audio", I can sympathize, up to a point. Steve Guttenberg, for one, has posted multiple videos about low-cost systems on his Daily Audiophiliac Show on YouTube. Needless to say, you can always buy used/demo gear.
Over twenty years, I've slowly upgraded to the point where I've got about 25K invested, including cabling and tweaks. I have friends with much, much more expensive systems and yes, their systems sound good but only "different"-- not "better" than mine-- to my ears. Spending a lot of cash is no guarantee of ending up with a system that pleases you. You need to learn to listen and discover which factors of msuic reproduction are most important to you.