There's certainly a lot of optimism in curing type 1 diabetes and there are already a lot of options that would make it significantly easier to manage (artificial pancreas, 1-year shots to keep your beta cells producing insulin, etc).
The problem is how long it takes for these treatments to go through trials, get government approval, and actually make it onto the market for us to use. Plus, there are often delays due to insufficient funding for each of these trials. If you're talking about a treatment, that process can easily take 5 years. If you're talking about an actual CURE that process could take more than 10.
On a personal level, I think about how insanely expensive this process takes, and (to a certain extent) I understand why pharmaceutical companies charge so much for their medications. Those profits help fund research to develop new treatment options and help to fund the process of actually bringing them to market.