Yes. Exactly. I just spent 4 hours the other day making a table that is mixed with dynamic controls and an amalgamation of ASP.NET and jQuery pixel fucking perfect when it came to borders for the control because it had to match the look of the old classic website to 'preserve the user experience.' What if I told you the user isn't going to notice that a button is 2 pixels higher up on this page when viewed in Internet Explorer 9? I could have spent the day doing something that adds value to the product, not fiddling with tiny quirks no user is going to notice anyway.
Don't be so sure...
$user complains that she can't open her email.
$me: we did copy over all your settings and your password hasn't changed. Can you show me?
$user: I used to click there, points to blank area on Desktop where Outlook icon used to be.
$me: try moving your pointer up half an inch and clicking there (pointing to Outlook icon).
$user: uhh OK I guess, I don't think i'll be able to get used to this new system