I vote yes.
When someone is starting out, it's an added security measure and velocity is a very good measure to know if you're "in the ballpark."
I have first hand experience of a balance beam scale being inaccurate, and was astounded when my starting loads were at max load velocity.
My balance beam scale was off by 7% (vs. a higher end balance beam scale).
I only knew this because I had a chrono.
If I didn't have one, I'd probably have shot my ladders, looking for good groups, and as most people know, good groups typically are on the hotter side.
Who knows how far over max I would have ended up, as some calibers don't exhibit pressure signs until WELL over max.
The caliber I discovered this inaccuracy on was 458S, which is one of those cartridges that doesn't show signs until well over max.
So, I still think its a good idea. You don't have to get a spectacular one, even a cheapie is good enough to keep you safe.
I have a LabRadar now. ZERO regrets.