You complicate things a bit with stores. A boot is a boot, no matter if you buy it at Hervis or Iglu. The choice or boot model is what matters. Unless you want to say that the boot model from Hervis is worse than the same model at Kibuba... For "serious" (for whatever, I don't know why "serious" would be an exception) boots you need common sense, and you can buy them even at Spar (provided they are available, of course).