You probably know this but I must harp on it some more because some people are quite trigger happy when it comes to buying things anywhere. Hence the items at the register to add to ticket sales.
If shopping for something relatively high priced, we must first make sure that we find the item that has the best reviews. This is a high priority because no one wants something that just won't work after a few months of use. This is an unusual thing to think about but believe it or not, it is essential or you will waste money replacing items.
Next, if you have it pinned down to a single item, we must then go test it out for ourselves. Go somewhere and see if they have a demonstration or if they will let you hold it. This may seem like nonsense but many people will choose differently if given an item to hold and play with before hand. However don't let the sales people sway you. Go in with a stone persona. Don't budge, you've done the research before coming in.
Now you are ready to buy, but wait where do you buy it?
I'd say you should look online. This is where you will find the best prices. And maybe you will get lucky and they will let you purchase it and pick it up in the store. If not, check the shipping price. Make sure that the shipping won't make it more than the store version.
Once you have decided, take the dive. Lots of work, yes, but it will be worth it once you hold that awesome thing in hand.