Dennis and Randy,
I am sure these engines will be around awhile. They are a good ol' workhorse!
I get a few messages per year about claims of "cheater" engines, poor tech practices at various tracks, etc...
Overall, I think the sealed engine program has gotten somewhat better. Yes, shipping engines back and forth is a pain and a little pricey. Makes it a bit rough on people without a big racing budgets, or those of us that live long distances from Charlotte or 'Vegas. I still think that Legends is one of the better spec classes available. As with any class of racing, there are always going to some who don't follow the rules. I like to think that they are the exception and not the rule.
Steve