That was true about ten years ago and before. Now East has a very inefficient, power-hungry, noncompetitive economy that starts to eat more money for social subsidies than it produces (Yanukovych himself decided recently to make the "pride" of Donetsk regions, state-owned coal mines private because of their unprofitableness). Crimea has been always unprofitable even with its lucrative tourism industry. East views its post-soviet industry as asset whereas West often sees its as liability and drag to the burning need of industry modernization.