Amazon UK offers the House M.D.: The Complete Collection on Blu-ray for $43.35 (£34.99). At checkout, the price drops to $36.14 (£29.16). With $3.82 (£3.08) for shipping, that's $8 under our mention from July and the lowest total price we've seen. (It's also the best deal we could find today by $45.) This box set includes all 177 episodes on 39 discs.
This Blu-ray set is region-free, and the episodes themselves will play on U.S. Blu-ray players; however, any extras and special features may not.
Update: This collection is now temporarily out of stock, but can still be ordered at this price for delivery when available.