I don't know about Korea but in Japan, FTTH in a lot of areas it is getting pretty pricy and deployment has slowed to a crawl. I was looking at NTT East and prices for 100Mb best effort service was close to $80 with a $300 install fee and hefty cell phone like $400 ETF.
Some deals for Asahi as the content provider had the install fee down to about $50 on a special. It's still a good price compared to the US but far from the dirt dirt dirt dirt dirt cheap prices we normally see quoted in news items. NTT East and West late last year dropped prices by a bundle because so many younger customers are dumping FTTH for LTE. My friends said that after the price cuts they're back down to about $55 including the typical $12 Internet fee (physical connection and Internet content are priced separately) but many are still dumping it for tethering off LTE. Softbank, DoCoMo and KDDI all offer up to 75Mb/25Mb LTE.
Many areas where DSL would get dumped won't get FTTH or FTTN either. They be forced to get LTE. Now Verizon has fixed LTE called HomeFusion. Promises 12 Mbps download 5 Mbps upload which is better than DSL but it's $60 for a mere 10 GB per month and $10 per GB afterwards. Or you can get 20 GB for $90 or 30 GB for $120. So $120 for 30 GB? That's joke. Who can afford that? And you still only get 30 GB. Cable's 250 GB-300 GB caps for $50-$80 a month seem like a bargin compared to fixed LTE. I'd take at&t 6 Mbps DSL and its 150 GB cap for $43 over LTE anyday.
It was a joke. But seriously I can't think of too many circumstances where someone is close enough to a CO or RT but can't get cable HSI. My business is in this situation because our local business park was built before CATV was deployed there in the early 1980's and video wasn't something biz was interested in but residential? Even with DSL, I'm 19.2K 24AWG copper feet from the CO so while I have it as a backup to WiMax, 3.5dB margins means 384-512kbps service on a good day (while I get 10-12Mb from my unlimited use fixed WiMax). I would think that most DSL subs are in a market where they can get cable HSI but perhaps choose DSL because it is frequently cheaper.