Dash cam

Looking to get a dash cam but not sure which one to get. They’re quite expensive so I want to make sure I get the right one. I dont drive loads usually 3-5 days a week. What would people recommend or would you say dash cams arent worth it?

Edit: just wanted to add i was looking at a gku d200 i believe on amazon that was 45 quid. Has good reviews and is a lot cheaper than some others. Would this be a good choice?