Honestly, isn't living near Dongtan Station much better than living in Ma-Yong-Seong these days?

Honestly, rather than living in an old villa neighborhood in Seoul or a mediocre area in Ma-Yong-Seong,
isn't moving into a flagship apartment in the prime area near Dongtan Station actually moving up to a higher-tier location?
If you calculate the travel time to Suseo or Samseong Station via GTX-A,
the accessibility to Gangnam is much faster and cleaner than in awkward outskirts of Seoul.
Plus, since Dongtan is a planned new city, the roads are clean, the school districts are well-established,
and you have the Dongtan Station Lotte Department Store within walking distance, plus massive demand from Samsung Electronics and SK Hynix employees.
In fact, a recent actual transaction for an 84㎡ unit at Dongtan Station Lotte Castle hit the 2 billion won range;
at this point, isn't it time to just liquidate mediocre complexes in Mapo or Yongsan?
Many people try to dismiss it just because it's in the provinces,
but the reality is that young elite couples working for major corporations are all gathering to live in Dongtan.
The environment for raising children is incomparable to the decaying old neighborhoods in Seoul.
Rather than insisting on just the "Seoul" label while living in an old house on a hill,
buying a flagship property in Dongtan seems like a much smarter choice... What do you all think?