There is nothing wrong with using a custom computer and throwing Linux on there with a software package to handle VPN, but based on your description, I think this would be a better fit unless you really want to go in depth on learning VPN technologies. By the sound of it, you just want something easy to set up and manage with little maintenance.
Now if you were trying to be sarcastic, maybe you should flip it around. Traditionally it has been Apple that was opposed to anything but their software existing on their hardware. Their drivers are always more limiting than Windows ever was. Especially graphics cards. Just my observation.
Given equivalent hardware, it always seems that Macs are way overpriced in comparison to other systems. Should that mean that I can get a Mac without OSX at a more reasonable Windows machine price? Even though Apple upgrades are free, how many times of purchasing Windows would it take to even out the cost of owning one with OSX? Since Linux is free, that cost would never reach the TCO of one with OSX or Windows.
Alternatively, DRM images like we do music so it cannot be linked outside the site(s) allowed to show it.
Zune was an awesome product (still have a Zune HD), but just late to the game. Apple was already trying their best to phase out older style iPods in favor of the iPod Touch. Everyone was wanting either the iPhone or the iPod touch and killing the sales for the other iPods. Microsoft tried to follow a route of moving the Zune app to their Windows Phone platform, but they failed to have Wi-Fi only version like Apple. Once they did that, Zune started to fade out in favor of the Xbox title.
Disclaimer: I do not claim to be an expert in the physics or technology behind this, but it seems logical to me.
I mainly use VLANs with layer 3 routing so I can have firewall rules at the switch level between the VLANs which I put on separate IP networks. I avoid using the same network across multiple VLANs.