I am all for buying online but not after abusing the trust that a LDS is giving you. Everytime you touch their merchandise, everytime you play around with it you damage it. As soon as you play with the computer the value drops by about 30% if not more. The markups that they charge are to pay for the merchandise that you and others like you damage (i.e. through use and testing), to pay for staff to explain to you how things work, cost of inventory that they keep on hand so that you can buy and walk out with the merchandise immediately etc etc. Now I agree that if they can't make their business model work that is their problem. However you cannot have it both ways, you are abusing the trust that the LDS is giving you.
One of the key skills that a LDS owner must have is to be able to quickly identify who is jerking them around and not waste too much time with those people. I highly recommend a book called "high probability selling" which is all about identifying whether a customer is going to buy or not and then allowing yourself (LDS owner) not to waste much time if they aren't.
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So - from what I can see, most folk who are online averse reason that they want to see and try the goods. You can have it both ways.
I have recently been looking at dive computers. Nothing fancy, straightforward air-only wrist model. I'm pretty new to diving and didn't want to go crazy on first purchase.
Well, I looked at several LDS. Selected the Uwatec Sport Plus, then tried to get a decent price. Most quoted mrsp. Leisure Pro's price was 40% less. So, after I actually checked out the item, tried its features and made my decision, I bought from LP.
They delivered within 48 hours, matched the manufacturer's warranty and saved me big bucks.
I'm a little more hesitant about regs and such, but if I can size a BC and select the one I want at an LDS - and they don't make a competitive offer on price - it's going to be Leisure Pro every time.