You might have more luck finding a 455 Lux.
The 452 was discontinued a couple years ago, it just took a while for the stock to work it's way through the system. The only difference between the 452 and 455 line is that the 455's have interchangeable barrels. (It's a European thing - apparently, in a number of European countries, you're limited to the number of long guns you can have registered to your license, which makes guns with interchangeable barrels/calibres a more attractive proposition).
If you spot one at a store NIB, buy it and don't ask too many questions. The 452 line was so well regarded, they'll hold their value well and you won't pop up used very often. People buy them to keep them, not trade them.