The difference between FDM and resin is quite substantial. Each style has applications which are easier, and come out better, compared to the other approach. Having one of each, I would never bother printing a replacement support bracket on resin, or printing a miniature model on FDM. With one of either, probably worth it.

The differences between hobby-grade and professional-grade printers are less obvious at this point, more about reliability and throughput than they are about fidelity at this point.