Custom latex for ones self can cost a hefty penny.
The colors, it being tailor made to your measurements, and also it being treated as you saw fit... Of course, this doesn't include the cost of lubricant, or even powder to help slide it on. Cleaning it as well tends to be a lot of work.
But for her - for Latch - it was all worth it. Worth to have her own custom, comfortable set of latex to wear for her own personal enjoyment. Unique to her, and comfortable for only her.