Airdale's right. Don't knock it until you've tried it.
As far as the experience thing, after nearly a year of instructing with few days off in between, I was swearing up and down "Okay, I'm done with this. I'm ready to move on." Mentally, I was. Experience wise, the CRJ ate my lunch for the first week or so. Taking some fancy course on systems or buying a type rating in a sim wouldn't have helped me. Why? They don't teach you airline profiles, descent planning, diversion techniques, visual approaches (HUGE in the real world, BTW), fuel management, etc. Heck, ground school for the airline only really teaches one of those. The rest is "captain stuff." Guess what. It's stuff you'll wanna know unless you want to be asking the captain every time. Some of that stuff I learned the old fashioned way, by teaching it to PPL and commercial students. Doesn't matter if it's a CRJ or a 172, I've ALWAYS got an out in mind if the weather goes south. I just happen to have more options with a bigger range now.
Don't be in a rush to get somewhere or move on to the next level. Soak up all the experience you can right now. It will help later one, even if it is in a piston single.