Hahah, intresting tradition! I want to explain a little bit:
— About the sounds: yes, they are really missing and I think today or tomorrow they will be added (that is, there will be a quick transition from version 0.8.20 to 0.9.1). So keep an eye on devlog, which I update with each version and then (since you bought it, for which thanks, it's a great support) download it from there. — Now about the gameplay: it too will be refined over time and for now there are some chips & bugs to fix before adding anything new). And about the new attachments (cool idea about the enlarged store). I'll add it to the next devlog and sign your name to that idea, it will be implemented ;)