Not pixel peeping would work if you are just concerned with sharpness. Bokeh, color rendering, and resistance to chromatic aberration are just as important as sharpness to me when I consider a lens.
The desire to have a large max aperture has also fueled my LBA. Build quality and characterics are also important.
There are plenty of reasons to want more or different lenses, and I say as long as you don't cause yourself any significant financial harm in buying them, LBA isn't all that bad. In the end though, the most important thing is that you actually use the lenses you buy, and don't just buy them and then never, or hardly ever, mount them on the camera. That is, unless you're a collector more than a user of lenses. In that case, I guess LBA is a completely different beast.
Originally posted by timo One symptom of LBA is when you have multiple lenses that are reasonably fast and cover the same focal length. One way to counter it would be never, ever to look at any image at 100% on your computer screen.
Presented with the output of various lenses viewed at a more realistic size, or printed at any size smaller than a poster, most people could not tell the difference between the output of one lens and another. That might be true for you too.
LBA feeds on itself, and pixel peeping is the main way it does it. Pixel peeping is a lonely, solitary activity, in a world of its own disconnected from any other reality.
To prove that I only need to look at all the lenses I have and never use!
Perhaps just looking at photographs of lenses would be just as effective, and cheaper?
Tim