There are just so many really nice quality cigars you can get for $3-$4, especially when on sale or auction. So many Padillas, DPGs, Man o' War Ruination, 601/Cubaos, even a few Tats. Honestly, that's kind of my go-to price range or "everyday" smokes.
My "good" price range then goes up to $6, and in that range I can find almost anything that I really like. Most of my Tats, Illusiones, regular-line Padrons, etc ... heck, I just scored some Tat Especiales for $6/stick and have purchase My Fathers for just a hair more than that.
$6-$10 is a "something nice" price range. Liga Privadas, PAM '64s, the nicer Tats and Illusiones, etc. I usually smoke 2-3 of those a month. Higher than $10 and we're talking a special occasion cigar for me--though admittedly I usually find a "special occasion" at least once a month

Plus there are vacations or special weeks where I"ll smoke a number of my nicest sticks ... those weeks are awesome, lol.
NOTE: All my prices are PRICE OF ACQUISITION, so there will be some auction/sale sticks at the same price range as some retail-priced sticks, though the sale sticks may be much nicer in reality. Also, if a stick is now out of production or from somewhere ... special ... it will automatically be bumped up a category or two regardless of how much I paid for it!