Expensive? I bet it's less expensive than losing all your frozen inventory.

I know you're being sarcastic. But for anyone coming here with a damaged irony sensor: no. Setting up a VPN comes at zero software costs (it's all open source software, unless you're keen on getting ripped off by some proprietary product) and a reasonably low cost in man hours for setting it up (we're talking single-digit to low double-digit hours here).