Which brick is best cheap?

Excuse me, but I'm a bit confused by your question. Are you asking about the best affordable brick for a construction project, or are you perhaps referring to a metaphorical "brick" in the world of cryptocurrency or finance? If you're indeed inquiring about bricks for building, then the answer can vary greatly depending on the specific needs of your project. Factors such as durability, weight, color, and cost all come into play when determining which brick is best for the job. Additionally, it's important to consider the intended use of the structure being built, as certain types of bricks may be better suited for residential or commercial applications. However, if you're using "brick" as a metaphor for some aspect of cryptocurrency or finance, I'm afraid I'll need more context to provide a meaningful response. Cryptocurrency and finance are complex fields with numerous terms and concepts that can be interpreted in various ways. Without a clearer understanding of your question, it's difficult for me to offer a precise answer. In either case, I would recommend providing more details or clarification to help me better understand your inquiry.