Is high steam pressure important at home?
Full commercial steam pressure is nice to have but certainly not necessary. It's easy to make great milky coffees at home with any quality Italian espresso machine and all machines that I sell are capable of great steaming.
If steaming like a barista is important to you take a look at the Profitec Pro 700 coffee machine. This one has true commercial steam pressure along with valve control for pressure adjustment on-the-run. To learn about high pressure milk steaming please take a look at my Milk Workflow