Congratulations. You picked a great watch that will last for many years. Here is my 20+ year old 356 with sapphire crystal on a Marathon silicone strap. Still running great.
I saw these displayed at Costco as well. The bright sterile flourescent lighting of the display case did a terrible job of making any of the watches look attractive. The green is nice though and the same cost as Amazon.com so probably a good value too.
If it makes you happy that's all that really matters. You can probably be certain that nobody will ever shake their finger at you and chant "fake watch fake watch".
I travel with mine in individual cases. Much less bulky, easier to pack in your carry on, and one watch per case. That's a Zenith El Primero Rainbow Flyback.
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