If a company was willing to train me and provide me decent salary and benefits, I'd totally stay. If there was room to move up in the company, and they kept offering good salary and benefits, I'd probably never seriously consider leaving unless I hated the job or just got an amazing offer (barring events like needing to take care of parents, etc, of course). I feel like a lot of people would prefer the stability, even, especially if the company is investing in them.