If I love it and upgrade in five years I want to recoup as much of my initial investment as possible. Performance us the main thing...
My phone screwed up this message... but it is all here... in pieces.
Mirrorless tanking? Canon mirrorless, definitely. Others systems, not so much. If the OP is interested in a smaller system, check out the Panasonic GH4, Olympus OM-D EM-1, or the coming Sony A7s.... especially the A7s.
And making your decision on potential resale value is a horrible way to approach it if you're not a professional.
I don't disagree with the first part... saw a few lumix and others while I'm here in Puerto Rico.
But I always consider resale value as it relates to purchase price. If I don't like it, , I want to minimize my risk.