Current-gen freeze dryers excel at data management and monitoring. Many of them have special software, such as Labconco's Lyo-Works OS, that allow remote monitoring, multi-step custom programs, data visualization, and more. Such features are considerably less common among the freeze dryers populating the used market. So, if you have particularly sensitive samples and must prioritize in-depth monitoring, data collection, etc., then purchasing a brand-new, current-gen freeze dryer may be your best bet.