I can't disagree, but typically if someone makes say $10/hr they are not so likely to frequently spend $10 on a lunch, all their other bills considered. Where I live, the Starbucks and the Jamba share the same wall. I buy the Jamba (no waiting), my wife buys Starbucks and we always sit inside the buzy Starbucks. I think quality of the product and service (the experience) is harder to control with the franchise model, especially with a young company. It's like hearding cats on which owner/managers will spend the money to do things right. For the value meal, I would say maybe, but moreso that they need to simply price their smoothie right. If they came out with a "$5 Footlong" campaign that was 1/10 as successful as Subway I would buy the stock. This is a stock I have not owned, but I would like to find a reason to buy in.
If Jamba starts pricing their Smoothies at $7.95 (the path they are following), sure, I'll still buy one (maybe once a year).
btw, I just had my first 5 Guys burger on Saturday, very tasty.