I must be the outlier as I stopped buying from thrift stores a long time ago; biggest reason is sizing and selection. As someone mentioned any size bigger than a single and decent fashion is about as rare as a hen’s tooth. Plus all the stuff I bought from thrift stores have long since been given back to thrift stores.
I buy brand new when on sale. I can usually find my size and I find the styles to be up to date.
Used to buy from amazon but most of the fashion is from china so that means paying close attention to sizing.
Stores I usually buy from online are : laura, suzy shier, reitmans – prices are reasonable and I like the selection and fashion.