I suppose I'm a reformed discaholic. The past year or so I've thinned out around 150 DVDs from my collection. I used to pre-order like crazy. No more. I do upgrade favorites (awaiting the next 1776 edition), but it's very much a new world order now. I still have about 300+ discs, with at least 20% unviewed. I also avoid TV boxed sets because it adds pressure to devote a lot of time I could spend rewatching my favorite 300+ movies... 
If I pre-order two dozen or so movies per year, that's enough.
If I pre-order two dozen or so movies per year, that's enough.