This machine can work well as a treadle. You can Google the Treadle-On group to find more information.
Personally, I find these machines in cabinets way too heavy. The only way I would be tempted is if it's a working treadle.
In thrift shops around here, this type of machine would sell for about $30 (if it's not a treadle). Cabinet machines tend not to be as popular as vintage portables just because they are harder to transport. And the heavier old ones like this tend to be even less popular because of their weight. A treadle would sell for more -- up to maybe $150.
You can convert these from electric to treadle, but you have to hunt up the parts and do conversion work.