All from online shops (car boots seem to only have very old stuff now!), Harrys was £3.99 Classic ITV was £7.99 (but 4 DVDs), Tomorrow was £7.95 BUT my copy had losts of errors, and this completed the set again, all where new and shrink wrapped, and included delivery!
I collect DVDs, we have over 3,000 titles in the house now! I buy most from Car Boot Sales,Poundshops, markets, sales, and greatly reduced from the internet, but I only buy what I want to watch! I do a short report when I watch them, I got rid of almost 800 titles at Christmas 2010 (low score, duplicates, ones I'd never watch etc.) I continue to wade through them, and appear to be buying slightly less, but still watching like mad :)