Amazon UK offers Breaking Bad: The Complete Series on Blu-ray for $34.68 (£27.99). In-cart, it drops to $28.91 (£23.33). With $3.82 (£3.08) for shipping, that's $12 under yesterday's mention of a US copy and the lowest total price we've seen. (It's the best deal now by $58.) This 15-disc set includes all seasons.
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.