You're right, it's relatively easy. After 4 years at a regional, 9 at an intl supplemental, and now 2 here, there's major benefits to being domestic. I don't have issues with foreign agencies, no overfly permits to deal with, no chance customs in Bishkek wants to go home before my flight arrives, weather is (fairly) trustworthy and timely, I have ASD coverage so I can see where every one of my flights are at all times in relation to the weather. No language barriers. I don't worry about catering (don't any way). Getting fuel isn't an issue. I don't have to fill out Gen Decs or insure customs is updated on the latest arrival times. Eurocontrol doesn't reissue my flight plan six different times within a one hour window. I don't have to route around Alabama because they're doing military exercises.
So, maybe up in your sheep-skinned seat international travel is this glorious event, but from a position that actually has to plan the thing, it's almost more hassle than it's worth. ETOPS is nice and effective at moving people across the pond more efficiently on two engined aircraft, but it's not like you're taking the yellow brick road to Oz.