Well, this is a complicated question. And while the answer is both yes and no, it is essential to reiterate that the cost of a farm jack does not solely influence the quality of the product. You are likely to find reasonably priced high lifts without breaking the bank.
What directly influences the quality of the device you intend to purchase is its features. Again, depending on the cost of production and customer interests, most reputed manufacturers will reasonably price their products.