I have not bought a new bike in almost 20 years. All my bikes are used bikes and I do service them all myself. One can save a lot of money with used older bikes and doing repairs and upgrades yourself. But I personally don't care too much for high end components or weight saving. I am a chunky clydesdale myself and saving a few 100 grams here and there on the bike is not worth it and would not make it any faster with me on it.
Plus I am fan of good old CrMo steel frames. I am not planning to buy a new bike anytime in the future but I am always happy to get a cheap used one from someone who replaced it with a new one. One man's trash is another man's treasure.