I went to a 141 school that didn't have a single instructor with less than 1,000 hours. Times are tight and people don't want to go to the regionals for less than they make as flight instructors. Most of the instructors I know also have Part91 charter gigs or are looking for them. Or do other work on the side like ferry ops or seasonal aerial survey work.
There are good 141 schools out there, you just have to look. My school also happened to be apart of a Charter Company so when I did my turbine transition (systems training with the maintenance staff who specialized on the King Air and Standard operating procedures with the chief pilot for my FO duties) I got 15 hours of KA200 time as well. They also offer some time in a Citation jet if you would prefer that. And now I do the occasional 91 KA200 flight as well as other stuff on the side for work.