Вы захотели пойти в ресторан, забронировали столик, оставили предоплату. А потом выясняется, что ресторан так себе, чуть-чуть не достроен. И ваши действия? Подождать пока достроят и пойти там хоть что-нибудь съесть? Или отказаться от этой идеи, потерять деньги и еще уронить свою репутацию, как недальновидный?

Russia previously had plans to produce 52 fifth-generation T-50 fighters by 2020. However, these plans have been drastically scaled back. The Kremlin will now only procure 12 of the new jets.

Gathering advocates from several walks of life, a splinter group of congressmen, journalists, aircraft designers, former fighter pilots, and military analysts marched under the banner of the Military Reform Caucus to demonstrate the folly of the F–15. James Fallows eloquently expressed their credo in his best-selling book, National Defense. The reformers who focused on money saw the F–15 as too expensive at $20 million, seven times the cost of an F–4 and twenty times the cost of an F–5. They further argued that the airplane was so big and easy to see that the pilot of a small F–5-sized fighter could easily get inside the F–15 pilot’s OODA loop and wreak havoc

F-18 SH: slow, wing drop, "Super-Slow Hornet",
Billed as the Navy's strike-fighter of the future, the F/A-18 E/F is instead an expensive failure - a travesty of subterfuge and poor leadership. Intended to over come any potential adversaries during the next 20 years, the air craft is instead outperformed by a number of already operational air craft - including the fighter it is scheduled to replace, the original F/A-18 Hornet.
With its heavy, aerodynamically compromised airframe, and inadequate engines, the Super Hornet won't win many dogfights. Indeed, it can be outmaneuvered by nearly every front-line fighter fielded today.

F-22: too expensive, stealth is overrated, not needed, too complex, too big, can be shot down with just a .50 cal
The F22 is a mediocrity, at best.