As of December 2015, rear-tine tiller prices typically begin at about $800 and go upward from there, depending on brand, power, and a variety of other factors and options. Rear-tine tillers are considered more effective than front-tine or mid-tine tillers and are generally more expensive.
Rear-tine tillers are used for breaking up compacted earth that has not previously been overturned. Some models have counter-rotating tines, in which the two tines rotate in opposite directions in order to break up heavy clay. Front-tine tillers can be priced as low as $200, depending on the factors. Cultivators are an option for lighter work, and can be even less expensive.