The guitar's tone is affected by its craftsmanship and design, along with the material used to build it. The front and back of the body of the acoustic guitar affect tone to a great extent, as do the saddle, nuts, and bridge pins to some lower extent. And if talking about the electric guitar, the noticeable part of tone will be produced from the effects, pickups, and amps used.
There are many cheap guitars out there with poor sound quality. The choice is yours to save some money now or invest in an instrument that you will be happy with for years to come.