Public goods are a key element in the application of the SMART city concept to the real public space of cities and municipalities. These SMART public goods have specific characteristics and create additional added value that distinguishes them from standard public goods. It is not always economically or socially desirable and necessary to replace classic goods with SMART ones. The paper specifically deals with the issue of the effectiveness of public benches on the example of the Czech Republic, where against the background of a simplified cost-benefit analysis it discusses their economic benefits. As these are public goods, the cost-effectiveness of their financing must also be considered. The argument for the effectiveness of the use of SMART public goods must therefore have its implicit and explicit essence. As shown in the example of public benches from the Czech Republic, the acquisition and operation of this public good is subject to fashion factors rather than objective economic arguments.