Aerospoke V. B43 or similar

Now, aside from the trends and all that crap. What is wrong with a single Aerospoke on the front? Are they that bad as some may say? What are the goods and the bad’s? Is a B43 (alike to the one i am running as a rear) much better. Or any other rim for that matter? I’m just in a bit of a pickle as to whether i get a new frame AND a second hand good condition aerospoke or as to whether i get the frame and new/second hand components that will shine in all their glory (all off of the forum of course)

use the search function.