I wouldn't consider sending money to Kickstarter to be the equivalent of buying a machine; it's more like buying a lottery ticket. Just look at printers that are already on the market, with their track records and people's reviews posted.

To decide which one to get, figure out the part volume you need for the things you want to make, and the resolution you want on the surfaces. There are several resin-based printers on the market besides the Form2; like the Muve3d, B9 Creator, and Kudo3D.

It is possible to send the Form2 trays in for retrofitting with a glass bottom; that extends their life significantly: https://www.zvatindustries.com/ You can use 3rd party resins in Open Mode.