In a nutshell, that's the answer if you left strictly because the company decided to use a particular language or a particular compiler/IDE. Learning new tools and languages are part of reality in this industry. If you don't lean new tricks, you quickly become a dinosaur. You don't necessarily have to like the IDE/language to do your job effectively. It definately helps but it is not a _requirement_.

Did you even try the new tools? If not, you were foolish.

Did you have a new job already lined up? Are you independently wealthy? If not, you were hasty.

Conventional wisdom says that it's easier to find a new job when you already have one. This is largely because you have the ability to be very selective about the new position you take. When you leave first, you may find yourself in the position of needing to find a job to pay the bills and may not have the freedom to be selective.

At this point though, it sounds like you have already made the choice so all you can do is learn as much as you can from the way this turns out and keep it in mind when you find yourself in a similar situation.

It's nice to be idealistic, but in my book, it's even nicer to have a place to live and food on the table.

I have hobbies to have fun. I'm just lucky that I also have fun while at work.