See, I don't want you to do or leave anything. I'm a user just like you. And yes, I do think it is fair if users pay - or pay more - for getting more. Same as with everything else in the world, incl cars, houses, vacations, and probably your products or services, too.
So much in general. As for HikaShop, I'm sure you won't find a better value in (Joomla) E-commerce software. Compare with other "packages" which appear free or cheap at first glance but come "naked", then asking you to pay like $20 or more for a single payment or shipping method and other truly basic modules, eventually adding up to several hundreds of $$$... all of which comes included with HikaShop in one version or another. Not to mention that it's not "another 99 just to get the affiliate" - there's quite a bit more in the Business Edition.
And here you even have a 30-days money-back guarantee. Where else?