If you do a lot of garment sewing, sometimes computerized might be better - I do heirloom and my Pfaff does have a decent pin stitch. And I can make up my own decorative stitches. But I can't adjust foot pressure. I can do top tension, and adjust the bobbin (vertical) but can't change the pressure. Pfaff is assuming that IDT will take care of it.
However, even most mechanicals come with some great stitches which shouldn't limit you. If I can get my hands on a zigzag machine, I can do applique, cutwork, couching, etc. which seems to surprise a lot of people. I look for older books with manual techniques. You can take a continuous quilt stencil and use the bean or triple straight stitch for a good effect on a garment. I use it for quilted sweatshirts from scratch. Just takes more patience.
I like vertical bobbins anyway, and most mechanical machines have that. You can also adjust foot pressure on some. You can adjust the bobbin feed far easier, too.