Frozen Yogurt

Have you notice various frozen yogurt stores mushrooming around the south bay?
After Cold Stone, Jamba Juice, is this new food trend coming up?
There are two in Milpitas Frozos & That’s so yogurt (Opening soon). Month back I visited Frozos. Based on initial inquiry yogurt doesn’t have gelatin or egg.
It’s self-served frozen yogurt place with a large array of toppings from syrups, cookies, candies, fresh fruits & nuts. Pricing is based on total weight.
They have 6/8 flavor of Yogurt dispenser. You can mix various flavors. Then similar to cold stone top with various topping. At the end they weight the cup and charge.
Could this become good low calories alternative to my & Komal’s favorite Cold stone/Gelatino & closer to home too?