It really did cost you bigly. Compared with 25 years ago, Europe is less safe, less powerful, and more dependent on other countries for very important things.
The EU countries are, right now, pumping up their military budgets. Russia has just spent several years destroying it's huge stock of soviet era equipment. 25 years ago, that equipment was in better shape and the EU was reducing military budgets all over the place, and Ukraine was closer to Russia's sphere of influence - potentially far less safe but nobody knew it?