Inherent Flaw

I have done a little clothing shopping lately. I don't usually shop for clothes, due to lack of funds. In fact, the last dress I bought was my wedding dress 4 1/2 years ago. My wardrobe is full of old, worn, dated clothing, and with my changed post-baby body, I have found that some of it just doesn't fit me anymore. So, I am trying to find some items that will give my sad little wardrobe a small boost to get me through the next few years. I have a few requirements, and I don't think I'm picky. I still can't find what I need.

Dresses: There are about a zillion dresses for sale. I would say that 80% of these are of the sleeveless/spaghetti strap variety. The others are too short, too low, too old, too young, or just too expensive. The dress I found for my sissy-in-law's wedding is cute, but it had to be altered just a bit to make it modest (Thank You, Maggie!).

T-shirts: I believe that these requirements are simple. I want something that is comfortable. Not too tight, too short, too low, or too wide in the neckline, or expensive. Am I asking too much?

Here's the flaw, as said sissy-in-law pointed out: Most women don't actually have the bodies that fit the clothing that is being sold. Most of us don't have fabulous upper arms, so why are all the dresses sleeveless? Also, I would say that the majority of women don't want to dress like skanky chickies. So, why are all of the shirts tight and low?