How Long Do You Want Your Fragrance to Last?

I've seen many reviews of both expensive and affordable fragrances and the most asked question is "What's the longevity?" Some say 8+ hours is ideal while others say they do not want their fragrance to last that long.

For me, depends on my day. Now that my collection is growing I can wear one fragrance during the day and a different one at night. Sometimes I want to be able to switch it up but other times I want one fragrance to last me all day.

What do y'all think?