OK, so the owner is taking time to show you the gear and giving you the pitch about carrying only the best gear. Would you have felt better if he had ignored you and told you that the shop carries second-rate gear and to go somewhere other than his store? Interesting business model. I worked in a dive shop so I chuckle when I heard statements of the suspicious intent on the part of scuba diving sales people.
Most dive shops have a flagship brand, its usually Aqualung or Scubapro, followed by boutique brands like Atomic. Some will carry a second line of lower cost yet completely functional equipment. Scubapro even when so far as to create a lower priced line as part of its business plan.
Apex/Aqualung/Suunto are all good products, they are also owned by the same company if memory serves. I have several regulators made by the companies going back to my conself 14 and my current Apex for cold water diving up here in Alaska. All good equipment. That said, I also have a scubapro regulator and backmount bc (bpw) and like it just as much. As long as you take good care of it, the good stuff lasts forever.
Figure out what works for you. Renting is the best way of doing that until you figure out what you want to do. By the same token, having your own gear sure is nice when someone calls you on a Thursday night and asks if you want to dive with them Saturday morning.
A few years ago I was at the LA Scubashow. I was in the market for a new regulator and stopped off at the Atomics exhibit. The line was pricey, but had an excellent reputation. While speaking to the rep, one of her friends came up and in mid-sentence interupted our conversation. She engaged him and ignored me, and I wandered away when it became apparent that this was not to be a momentary diversion. As result, Atomic lost the sale.