Replied "There's plenty of internet speed tests online (e.g., Google and others). In order to reliably test close to 600 Mbps you'll need a 1 Gbps ethernet connection to the modem."
Commented "I have 1 Gbps with no caps from Bend Broadband. Bought my own modem at Best Buy; no rental fees. Usually test over 850-900 Mbps (with a hard wired ethernet connection to the router."
Commented "I already live near one of the cheapest places in Bend. There's a station in Madras that has much lower prices, but it's not worth the time and gas to drive there just to fill up."