You guys are talking about the revolving rate on a HELOC which is always high, as it's prime +%. But once you take out the money you have the option to lock it into a fixed portion = mini mortgage at pretty much mortgage rates.
No one just keeps cash borrowed in revolving as it's a higher rate unless you plan to have lots of cash in a few months to pay it off. Though your monthly minimum payment would be lower as you're only required to pay interest every month.
Even at 2.95% revolving rate is cheaper than Toyota finance rate
How else do people buy Tesla's and type r on here