In my case I have a mature cellar at an ideal size for myself and PURPLE for all purposes from weeknight dinners to kick a$$ offlines so basically at this point in life I just buy to replace what I've drank. Literally. Drink two Spanish this month, buy two Spanish next month to replace them. That kind of thing.
Having said all of that it naturally leads me to buy stuff I already know and like with the occasional foray outside the box and new, glitzy offerings turn me off if anything else.
Thanks G- for trying to talk wine around here for once.