Ya ~ both mine and my spouses police and vulnerable screening results are 'outdated' now for sure ~ cause the most recent ones were done in 2009 ~ however I still have it in there for them to 'see' .... no one has ever asked for a 'fresh one' ... I think having had one done at the start of your business and to be being 'willing' to have another one done generally is all clients want to know.
Mine were free cause they were done by CSA as part of placing a child under their guardianship in my program ... I think how much it costs depends on the 'nature' of why you want it ... if it is for a paid position somewhere they charge more verses if you are volunteering for a non profit agency then they often 'waive' the payment or offer a discounted rate for it depending on the agency.