The health of your bra and the health of your bust are both very important. If you take good care of your bras, they will take good care of you in that they will be comfortable and they will last for a long period of time. It can be hard to find good bras, especially if you're on a budget, but you can locate them if you're a savvy shopper. Taking care of the bras you have will also help you when it comes to saving money, because your bras will last a lot longer.
If you're just throwing your bras into the washing machine with all your other clothing, you could be shortening their lifespan. It's much better to wash them separately, or at least put them in a net bag that is made specifically for washing delicate items like bras, underwear, and stockings. When you care for your bras, they'll fit better and last longer.
It's tempting to buy something inexpensive as long as it fits well, but you might want to spend those extra few dollars to get a bra that is of a higher quality. You don't have to, but high-quality bras last longer overall than low-quality bras. If you want to have a healthy bra and a healthy, comfortable bustline, buying bras that are of a good quality will be the better choice.
Overall, there are many options when purchasing a bra. You should pay attention to size, fit, quality, brand, material, and other factors. Consider all of the issue when you buy a wacoal bra, and carefully read the instructions in order to learn the right way to care for your new purchase. That way, the bras you purchase will be more comfortable and last you much longer.