Alternatives to the FlexiForce 1lb sensor are being explored due to its high cost of $20 each, especially for projects requiring multiple units. CUI was suggested, but inquiries revealed that their pressure sensors might be more expensive and require large orders. The discussion also highlights that cheap digital scales typically use resistive strain gauge sensors to measure weight, which operate similarly to FlexiForce sensors. It's important to differentiate these sensors from load cells, as they function differently. Overall, finding a cost-effective sensor solution remains a priority for the project.