chances are, the $200 hydraulic is made by the same people that made the $70 hydraulic.
i have two harbor freight lightweight aluminum hydraulic racing jacks (by american general or something). been using them for the last 4-5yrs. one had a problem with the front roller... it locked up, but was replaced under warranty. no issues.
i also have a $19 rotary tool which have been great the last 5yrs.
