Amazon UK offers Friends: The Complete Series on Blu-ray Disc for $43.44 (£34.99). Add it to your cart and proceed to checkout to drop it to $36.20 (£29.16). With $3.83 (£3.08) for shipping, that's $20 under our mention from last November, the best price we've seen, and a low by $28. It includes all 236 original broadcast episodes on 21 discs.
This Blu-ray set is region-free; the episodes themselves will play on US Blu-ray players, but the extras and special features may not.