A couples questions.... What spikes do you prefer that do not wear as much as the Stingers? The Black Widows, which have a lot more grip when new, are really prone to wear quickly based on their overall design. Those spider "legs" just flatten out and lose grip pretty quickly, plus they are a bit@# to keep clean.
As for Champs, I have used them a LONG time in all of my Icons, and find that I can replace them once a year without an issue. That said, I have multiple pairs of shoes that I rotate through.
Perhaps that is another question; how many pairs of shoes do you use? It should certainly be more than one in order to prolong the life of said shoe and spike.
Hope this is of use and welcome to the site.