In this case, a little obscurity goes a long way. A $5/month droplet is more than enough for a single household’s internet use. If you make cash purchases with any frequency, it’s very possible to make your once-every-10-months $50 Visa gift card purchase nearly untraceable (at least by dragnet/mass methods). Your cover is far more likely to be blown by other things, like which IP address connects to the droplet most frequently.