Trips are the easy one, especially if your preferred shop's trips are booked. If they have a dive-travel capability, ask them if they can help you book a different trip. I use my shop to book me on liveaboards and landbased vacations seperate from shop-arranged trips. If they don't have this ability/desire, you can still ask them for suggestions as to where to go and with whom. "I see your Cozumel trip is booked... the shop across town is running one to Hotel X. Is that a decent hotel/op? Any ideas about how that shop runs trips? What gear will I need to buy to go on such a trip?" Assuming your preferred shop's trips are not an option for you, I think your shop would rather you go diving somewhere... with someone... (rather than stay home alone) because active/traveling divers buy gear and pursue training.