If you are viewing it as an "investment piece," intending to use it for many years, if you can afford it, I would suggest getting an inexpensive cropped one, and choosing one of "regular" length to be your investment piece.
Cropped and shrunken jackets and cardigans are very popular right now, a huge trend, but they do not look good on most people, including, unfortunately, most people who wear them!
In a few years, most of those people will have come to realize that, and thrift stores will overflow with cropped everything, while the traditional and more universally flattering lengths will be with us in perpetuity!