the math here is horribly wrong and misleading. First off, the samples sizes are not 3grams, those are full bottles. The sample sizes for the vendors you mention; Al Shareef Oudh 0.2ml, Imperial Oud 0.2ml and Ensar 0.3grams and I believe 0.25grams some oils. If we take your example for the $2500/3gm oil Ensar sells the 0.25gm at $225 for Sultan Ahmad as per his website. Which is 8% higher than per ml on the full bottle, not 10+% as you have mentioned. You should correct your post and apologies to Ensar for miss representing his product cost. Secondly you count the shipping as ~$30, I know we ship samples for $5 usd which makes our samples the best value for money and well below 5%. If you are going to use numbers, you should be cautious not to miss represent vendors.