Yes, Sparks pushes it all of the time, and you can find extra points offered on the Spark Points page. I'm to frugal to waste money on any of those things, but if they help others then I'm glad. I go to yard sales and find all types of exercise equiment and items that people spend money on and never use. I'm just not one to waste any money.
I do have two 10# kettlebells and love them. They were worth the money. I want to buy a set of Indian Clubs as IZZYBARISH on YouTube has great videos on using them & making yourself more flexible in the upper arms and shoulders.