[62951413]

Isn't the main risk here not acquiring new production experience and so reducing your chances for finding the next gig? As in "adding new buzzwords to your resume" basically.

When they ask you in three years about how you have spent the time. If you convert XML requests to JSON messages for a living and not even with Spark.

[Damogran6]

Aspirationally, you should be getting to the point where you care less about the underlying technology (you're smart, you can pick up whatever tech they want to use this week), you're paid more because you have the scars and experience that can be better applied to the tech du jour.