great feedback! Thanks!
I will definitely look into expanding the range with alternative and harder to get brands.
@wotalegend - you're pretty much spot on, I don't think we would be able to compete with prices you could get yourself if you bought bulk from overseas suppliers as you say. Not at this stage anyway. I guess what we'll aim to do is to target users that do small purchases with the incentive of offering a large selection of different films to choose from. Then we'd move towards bigger discounts for higher volume purchases (5, 10, 30 films etc) as our capital and inventory increases.
The same regarding chemicals - I think there is a definitely a market in Australia for this, however we don't have the capital (or expertise) at this stage yet, so we'll take it in small steps at a time.
Cheers, thanks for all the comments/feedback.. keep it coming!