Other than the quality of construction and price, what makes for the perfect bra?
Could it be...
A nice snug fit for your boobs
Comfort
Color
Attractiveness of material, color, shine, etc.
Ease of fastening and removing
Ease of cleaning and drying
How it holds up over time (stretching, fading, etc.)
The way it makes your overall appearance even more feminine
How it lifts or otherwise repositions your breasts, perhaps closer together
Support provided
Ability to hide protruding nipples
Ability to attract others to your body for those who may see your bra when you have it on
Ability to make your breasts look bigger
Ability to make your breasts look smaller
Ability to make your breasts look nice for your body shape
Appropriateness or versatility of bra design (style, straps, etc.) for what you are wearing: low-cut blouse, business outfits, t-shirts, dresses, etc.
I am sure you can think of more characteristics that make for a great bra!

Chrissy