I didn't. I bought online. I decided what camera I wanted and after you've already bought the first one then subsequent ones you can decide without picking up to a greater degree.
Reading lots of reviews gives you a good idea of how they behave and what problems they have or silly usablity things. The dpreview ones are good for this.
I've not bought a camera in a shop since I got one from Jessops donkeys ago. I just buy online. Bought my last one from jessops ironically.
It's still a good idea to have a feel of the thing before handing over the cash and in the instance of a certain 3rd party lens manufacturer, it's a good idea to try the actual item you're about to buy before shelling out!
Most stuff I buy online. It's only occasionally items don't live up to what the description says or is disappointing in a way I hadn't anticipated.
Shopping on t'internet is so much easier. No parking space to find. No rain. No old biddies dawdling. No litter. No beggars. No baked on chewing gum to walk over. Local town centres are unpleasant to visit.
except when you need to park outside the pick up depot when the PO have called while you were out...
The vast majority of things I buy don't involve visiting a shop. Exceptions are carpets as you need to feel those to judge quality. Kitchens/Bathrooms I'd probably want to pull out drawers to make sure they're any good. Luckily there is a wickes 5 minutes away that isn't in a horrible town centre so I can try them out there.
Just had a new stairs, landing and bathroom carpet fitted and didn't go near a carpet shop, the fitting company brought a selection of sample "books" around and left them with us for several days for us to choose the manufacturer, colour and quality. With kitchens, you're far better visiting a customer who's had theirs fitted for a while to see how the units last in real life, without being fettled on a daily basis and having the standard fixings beefed up with decent ones when the drawer fronts drop off!
I think most people are becoming like this now.