Only the rich viet kieus could afford it. You'd have to go into mandatory quarantine for 14 days. I heard it can cost up to $4,000 per person. Also, you need to be there for business or family, not for vacation. Visa is only 1 month so after the quarantine you'll only have 16 days there. Not sure if I would do it even if I had that kind of money. You'd probably need at least $8,000 min for a good trip. round trip plane ticket, quarantine money, food/hotel...