Mine was maybe $20 with extra set of blades.

It also tends to cut pretty badly unless you're using a fresh, sharp blade.

The best thing I ever did was hire it out.Before I did that the best thing was having the right tools.If you plan to do a lot of this you can buy a laser, a ridgid 10" wet saw, an angle grinder with a sharp diamond blade, and a standard tile cutter in the $200-$600 range with a sharp wheel.You want to lay all of your full tiles first and then come back for your cuts.

The knife was about 6 in long (including handle) and the blade was about 3 in long.

We don't provide anything to a tenant that has blades or non-electric motors.

Rent an angle grinder with a diamond blade if you don't have one, and start taking down the high spot.

The motor was off balance and the fan blade inside it was cracked.

@John Fider when the flooring company came to do my house, they had a large weighted flat blade attached to a rod.

Turn the disposal blades with the handle. 

The plumber gave me a call and said he had pulled a switch blade knife that was in a leather cell phone case, (the kind people wear on their belt) out of the toilet.