Is resealed MacBook box normal?...

Hello all. I just rejoined the Apple fold by purchasing a new MacBook (black) last night from the local Apple Store. When I got home, however, I began to suspect the "newness" of my purchase. I noticed that there were two seals on the edge of the box. The underlying seal had been cut. And the second seal was placed over the cut seal. The second seal looks like the original factory seal (i.e. clear, rectangular, with rounded corners). But it is offset by several millimeters, which is what caught my eye. Since the seals were offset, it was relatively easy to see the edge of the underlying seal, which was clearly slit.

I have done some online research before coming here. So forgive me if this question is old news. I found some info online which seems to explain the situation. Apparently Apple, either at the factory or at the retail store has slit the boxes to add an extra DVD. Various posts have indicated differing opinions as to what exactly was added to the box. Some say the DVD is the Leopard 10.5 upgrade. Others say the DVD is a new 2008 iLife disc.

I went to the Apple Support page and found a page where I entered my serial number. The site told me I have a "Late 2007" MacBook model. I also found a third-party site, which explained my serial number. The site said my MacBook was made during the third week of January of this year(!). This was really surprising to me, considering I bought the computer last night. Can modern commerce be so swift that a computer made in China during the third week of a month be sold in the US during the fifth week of the same month? If so, I'm impressed.

This brings me to the crux of my question. I went to the "Technical Specifications" section of Apple Support and found that "Late 2007" MacBooks should already be pre-installed with 10.5 Leopard. It is the Mid-2007 MacBooks that are shipped with 10.4 Tiger. Since "Late 2007" MacBooks were first introduced on 11/1/07 (per the website) and mine was made (purportedly) during the third week of January 2008, then one should assume my MacBook already has 10.5 Leopard pre-installed. So why would the box need to be slit open to add a copy of Leopard?

Obviously, I could solve the problem of what's inside the box by just opening it up. I'm just worried with the gray area of having two seals on the box, and the potential trouble of trying to explain the reason for the exchange, once the box has been opened. This is why I have not opened the box yet. I'm trying to do some research before I open the box. Without any clear information I may just take the box into the store and open it in front of them. If everything looks great (i.e. correct software is preloaded, seals on interior packaging are correct, cables are tied tightly, etc.) then all is well. But at least if I open it in front of the manager, they can't say I did something wrong or am trying to pull a fast-one.

Has anyone had a similar experience? I'm interested in all reponses...but especially from MacBook owners who have purchased their computer after 11/1/07, when the "Late 2007" version started making the rounds. Also, if any Apple folks are reading this question, I'd appreciate your input. Additionally, it might be wise for Apple brass to initiate a procedure at the Apple Stores where the two-seal situation is explained to the customer at the point of purchase. If Steve Jobs buys a jar of aspirin, opens the top and sees that the "safety seal" has been re-taped over the top of the jar, I have a strong suspicion that he would not use that product. Considering I spent considerably more on my MacBook than Steve would have paid for the aspirin, one can see why I am concerned.

Thank you in advance for your input.