David Megginson wrote
Funny, you just listed my major purchases over the past six months: I bought
a Garmin 196 in December, and just ferried my plane back from Montreal this
afternoon with a (used but factory updated) WX-900 Stormscope installed by
an experienced shop. It was the perfect afternoon for it: solid IMC above
1,200 ft AGL, with a small risk of occasional embedded TCU and CB (normally,
I cancelled flights under those conditions).

All I can tell you is that you've made the right purchases. If you're
already taking regular recurrent training, still have money left over,
and have a burning desire to spent it to improve safety in your plane,
go ahead and get the backup vacuum or electric attitude gyro. Can't
hurt, might help.

It's all about priorities. You can keep spending money forever.

Michael