EDIT: I screwed up on the poll title. Should have been .Do you use aftermarket parts. Maybe Adim can edit it?

Just curious regarding aftermarket parts. Sometimes the original parts are so overpriced or difficult to find or simply backordered and therefor many go with aftermarket. There are brands like Sierra that specialize in this and seem to be trusted by many. I myself tend to go aftermarket on many items such as filters and lubrication. Have bought quite a few aftermarket impellers also.