I'd also suggest offering designated packs for a smaller price i29 . This is not because Germans are stingy, but much more because the situation on a whole has changed for many people during the last three years - especially financially - so people tend to take more consideration in what is really essential. Also, don't ignore that TSC has crossed its peak some time ago, with newer generation simulators coming online, like eg. TSW3 or SimRail.
Concluding this, it's not against you, per se, but much more the evolution of time. Your products are looking great and I'll look into getting them, but if I may suggest:
designated packs for a smaller price and a discount if one takes more than for example two sets during purchase.
Kind regards.