I was one of the people who stayed on for 1.5 min in the past. I remember the page and got frustrated with it within the minute and moved on mainly for 2 main reasons; 1) page is to large, I had to scroll (left/right) or maximize my window which I dont like doing - yes a pet peeve but compare that to LP or Scubatoys, everything fits without having to blow up IE. 2) you have categories in the middle of the window and then categories on the left - pick one please. The middle window ones I find annoying, too many graphics, makes the page larger and its not everything you carry because right under you have: " Didnt find your category, click on the left for more" you are making folks look in 2 places. I was overwhelmed with too much info and thought you were trying to hard. Similarly when you open a category, take wetsuits as an example, I am presented with 39 pictures on one screen, no sense of organization to them. You start with 2mm and work up to 7mm then back to a shorty and back to a 7mm then back to a 3/2 then a shorty then a 7mm... etc. again, forced me to look and read everything. If I were looking for say a 3mm henderson I would glance at everything you have and then realize you didnt have them - thats ok but worse is, I cant tell you what you do carry. brand names are all over the place so you loose the repetitive look of grouping brandnames.
I am not suggesting you look like LP/scubatoys, only mentioned them as a comparison as they seem to be very popular as online sales arena. Their homepages have no more than a handful of items on them I can then look deeper into each item or just browse around. When I do browse I can see multiple brand X items together, that makes one remember you carry brand X. They also have some good deals on the main page, makes me take a look and wonder... hhhmm.. do I need another light ? or wow, thats a good price for a 3mm. I have been suckered into buying like that before and while I got a good price, I rarely buy one thing at a time. yes I like gadgets.
So:
- have ability to sort by brand and price.
- some basic organization so if I wanted a C8 light I could scroll to the end versus a pen light, same for wetsuits, knives, etc.
- smaller (left/right) pages. dont mind scrolling up/down - its the other way that bugs me.
- as others have said, remove the redundant words (scuba, dive, etc), streamline the page may give more of an impression you mean business and not just pushing product.
- give users a reason to stay. Again as a comparison, look at LPs main page, they have: 4 or 5 featured items (sales), gift card, divers atlas, buying guide, return policy, etc. I know you have that up top but you loose it with all the product categories you throw out.
- streamline. more pics and more stuff on a page is not always better. If I ask for 28 bags then throw them at me, but dont tell me everythng you have all at once without ability to filter. I would suggest you develop a sleeker template for each page ad carry that throughout the site. May seem obvious but i have seen many sites where each page looks different.
Disclaimer: you asked so I commented with the hope the feedback is useful. I did not compare pricing because thats not what you asked for, you asked... why do people only stay 1.5 min. Wish you good luck and hope this helps.