Originally Posted by bagpiper
...unless you physically could not do it yourself.
Actually that is an issue (lower back disability, bad knee, carpal tunnel/tendonitis) so it's as much for that as for the filthy grout. Hence the focus on having a heavy-duty pro cleaning.
btw, Kenny, just fyi: When you get to the point in life where the first number in your age is a 6... trust me, your body will teach you to pick your battles very
carefully when it comes to manual labor!
There's usually a price to pay in bodily pain for the "satisfaction" of doing it yourself and sometimes (as in this case) it's just not worth it...