We haven’t, but we’ve also been accumulating them since at least a few years before the inflation spike. It’s not a big enough chunk of my portfolio that I’m worried about hyper optimizing. If the spread with other options widens I’ll probably change my tune.

I'm planning on it so I can keep my "cash" together. I hold t-bills in my brokerage account, and I only bought ibonds to take advantage of the higher interest rates. I've only had mine for 1-2 years, so it's not a huge win, but it makes me feel like I'm willing enough to keep my from playing with the market.