Mathics 7.0 presents itself as a promising open-source alternative to Mathematica, translating many core features of the popular software into a free format. While it shows good progress, proponents acknowledge it lacks the extensive libraries provided by Mathematica. Various open-source Computer Algebra Systems like SAGEmath and Maxima are discussed as established alternatives that offer unique functionalities. Users debate the merits of paying for proprietary software versus contributing to the development of free and open-source options, emphasizing the evolving landscape of mathematical software. Community support and the rapid pace of development in the open-source domain, fueled by initiatives like Jupyter and sympy, represent significant opportunities for growth in this space.