I've been dealing with similar dilemmas.
Once upon a time (when I first started researching this hobby), everyone bought live rock imported from the West or South Pacific. Some people went out of there way for premium rock with a lot of life on it, much of which was dead or dying (thus the curing cycle), but lots of which still survived. You also got all kinds of hitchhikers - good and bad that you have to deal with. But you get a whole saltwater world with your tank.
Well, that dried up, but now we have aquacultured rock from either the Keys or Tampa bay with the same basic characteristics. In fact, in one area it's even better: you can air freight it directly to you, theoretically skipping the whole curing process, and with much less die off -Rich also ships it with a good amount of sea water, so if you live in a major metro area on the East Coast US, your rock could literally be in the holding tank at lunch time and it could be in your tank at dinner time with minimal stress.
Honestly, if you want your tank like that, things have never been better. But the downside is that some of the biodiversity is hard to keep (Rich explains how to keep them on his website, but I think actually doing what he says is hard, especially for a new aquarist). You also have to deal with Mantis Shimp, bad crabs, and possibly even invasive Aiptasia (Rich stated somewhere that the Aiptasia on his rock is not the Pacific invasive species, which is partially true but I have heard some people have had problems with Atlantic invasive species).
But I think the worst is that the rock may or may not suit your aquarium goals. Many people just want rock with bacteria to serve as a biological filter, and from there put all kinds of fish and colorful Pacific-origin corals. They don't want macro algae, sponges, Florida anemones, gorgonians, etc - at best they're irrelvant to the tank goals, at worst they are competitors for rock and tank space with the corals. They certainly don't want mantis shrimp, etc. If that's the case, curing dry rock and getting the bacteria from your live sand probably is best for you, especially since you can aquascape it. Or, alternately, some places offer cured (fairly dead looking) rock (probably with only bacteria) - e.g. KP Aquatic's "cured base rock" or the offerings from Caribsea. This IMO can be the best bang for your buck, especially if you don't want to cure dry rock, since it's not much more expensive than dry rock.
The aquacultured Florida rock also isn't good if you really want to create a non-florida shallow reef biotope tank. John Tullock's Natural Reef Aquarium book has like 4 different keys biotopes and then a Tampa bay biotope suggestion that would work well with this rock. But the rock is useless if you want a deep (NPS coral) reef tank, or again not too suitable if you want to really create a low/highly controlled nutrient tank simulating a reef crest and its primarily SPS corals.
I tried to see if air freighted Pacific live rock is avaiable, and it would appear not. As an alternative, I looked into "creating" my own Pacific rock: making a list of the small organisms or hitchhikers I might want equivalently to the TBS rock for an indo pacific patch reef biotope (modeled after Longdong Bay in Taiwan, where I got my SCUBA certification, where I've done some of my best landscape photography, and which has a bit of sentimental value for my wife and I), and then seeing how much it would cost to redo. I found it's even more expensive this way: getting tank/sandbed builders and inverts from Indo Pacific Sea Farms and Dr. Mac's Pacific East, approaches the price of the 20 gallon TBS package, shipped. (this is before you add the soft corals which live heavily in shallow Indo-pacific lagoons, which would sub for the gorgonians and the like which came in the TBS package).
Secret: the cheapest place to get live rock is from another aquarist (or another aquarist's dried old live rock). But you have to be careful, how well did they maintain their tank?...
