Spokes still twanging - does that mean I need a new bike?

Spokes on the front wheel still playing a merry tune as I ride along, despite my half-hearted attempts to adjust. I think LBS visit is in order, however not sure when I'll be able to do that.
Clearly there must be a safety hazard here, which must be enough justification for SWMBO to allow me bike number two? What do you think?
Clearly there must be a safety hazard here, which must be enough justification for SWMBO to allow me bike number two? What do you think?

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PX Kaffenback 2 = Work Horse
B-Twin Alur 700 = Sundays and Hills
Marin Nail Trail
Cotic Solaris
You need two new bikes in case the new one explodes or something
Revolution Courier Race Disc '14
My Strava
So yes - he should obviously use this problem as leverage to buy another bike, but let's stop the patronising and frankly insulting implications that he currently owns just one bike...
PX Kaffenback 2 = Work Horse
B-Twin Alur 700 = Sundays and Hills
retired 9.6kg Carrera Kraken
The Carrera Hardtail combined thread - come on all you Carrera's!
The Sons Scott Genius RC20 build
New bike it is then