All manufacturers have to be very competitive in producing a product which will go up against another product which serves the same function. If one product in the same line of goods sells for less than another product, it's because it costs that manufacturer less to produce the goods. The cost savings could come from anywhere along the line of manufacture, from less expensive raw materials to more efficient methods of manufacture and even the cost of labor to produce the product. I'm 63 years old, so I've been a consumer for a few more years than most of the contributors on this forum and it has been my experience that if it costs less, it's usually because the manufacturer has used less costly materials. Now, in the case of Proform, I suspect that labor is a big factor because I further suspect that those pieces are being produced in China. I have no actual experience with Proform like I have with Pertronix. I've used their goods with success on several occasions and recommend them highly.

Now you know my mindset and the thinking that goes into everything I purchase. The only thing left is for you to decide which product will work best for you over the long term.