two things to consider and look for
1] the machine----how designs are transfered to the machine
how big an area you can embroider on[how big a hoop it supports
2] the computer program [and computer needed] to digitise your own designs
many choices look arround a lot before you spend so you are sure you get what you want-------i have a pfaff 2124 mid range approx 5 yers old $3000 aussi -- i run the 4 D
program without the ability to didgitise but can combine bits of other designs to make ie a garden scene approx $1800---ask as many users as yoou can---