[daxfohl]

Another honest assessment: if MVC is the only thing blocking you from various better positions, just say you've got it on your resume. Then spend a couple days after work going through MVC tutorials. "New Project->Web->MVC->OK. F5." Bam, you've got MVC experience.

Seriously it's way easier than webforms so if you've got that much webforms experience, you'll have absolutely no problem picking it up. Within a week you'll know 95% of what you'd need to know on most tech interviews and you'll do fine at your new job. Stuff varies so much company-to-company that MVC will not even be one of the top five differences.

In my previous response I was thinking more you were looking for some big change into something very cutting-edge. That would be a more difficult proposition. But if you're just looking to go from webforms to MVC, or even to a Java-based infrastructure, it's not a big hurdle. Like others have said, the HR filter will be the biggest problem. There will be an age bias too, you'll just have to deal with that.

FWIW I don't think you should expect a paycut or a cut in "rank" either just because of changing technologies. You'll get caught up on the technical side very quickly. Outside of extremely technical companies, "rank" is far more about knowing how to get through a release cycle coordinate teams than it is about specific technical knowledge.

All that said, just be warned, working on websites in MVC (or really any technology) is really no more interesting than Webforms. (In fact webforms may be more interesting because you get to invent your own way around its inadequacies).