Some people go for the cheapest option available and buy them right way. However, this is not the right way to choose the best workbench for the money. Remember, you are looking for the best product within your budget, not the cheapest one.
Thus, you should shortlist the features you want in a product. Then, choose the benches that have all these criteria and rank them according to price. Ultimately, buy the one that is neither the cheapest nor the priciest in the market.