A 'hidden cost' of being a pro Locked

I would love one, and I will be getting one of the portable models when the wife and I travel in a couple of years.

As a desktop, not yet anyway. No upgrade path. Need more memory? Want to add a bigger / faster SSD drive? Want to add or change anything in your current Mac and you are SOL. Almost like having a camera without interchangeable lens Just kidding. Have a great season everyone. Cheers.

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'The question is not what you look at, but what you see'
Thoreau