Dive shops are in a difficult spot.
Most have historically made their money as exclusive distributors of gear, and now that is widely available at a lower price through the internet. However, the internet can't easily sell training, air or help you manage your development as a diver.
However, the gear choices are bewildering, and most people end up with gear they really didn't want. This is where a responsible dive shop, that is interested in having a long term relationship, will offer sound advice, "rent to buy" and other incentives to make you want to pay them a higher price in exchange for added value.
Shops also tend to specialize in some dimension of diving, so discuss that with them as well and see where your mutual interests are.
The next bit is controversial - I'm sure you'll hear different opinions than mine, but we're all entitled to one...
Be a little sensitive to their situation - coming in, spending several hours getting educated, and then buying everything online is not your route to a long term relationship with a trusted advisor.