Originally Posted by gofast182
To be clear, I was referring to CMX. It would be pointless to apply/layer that product after each wash since it is a real coating.
I understand and it's a good point. A person will get the biggest bang for the money by using it diligently. Some though will apply it and at the next wash apply another coat due to its ease of use. For me, I won't do that unless it's getting close to winter and I think the extra cost will give me better protection against the elements.
A cheaper alternative would be using a quick detailer or something cheaper on top as a drying aid. Also, some like the durability of a sealant but prefer the depth of a wax coat. In that case they could use the CMX for long term protection but use a spray wax occasionally to get the look they want. Is it needed? That is up to each individual. For a daily driver car, it might not be necessary. If one owns a nice BMW for example and wants it to look its best then they have the option.