It's completely lame (pun intended) that Sonar doesn't offer an MP3 encoder out of the box. Sure, I can export to MP3 after the fact (which I do), but this is just silly. It's not like MP3 is some obscure audio format no one really uses. At this point it's THE ubiquitous final audio format at this point. Make a .wav for CD's/masters, but ultimately, the MP3 is what the band is uploading to iTunes or putting on their website, posting on Soundcloud, etc.
I'd rather get charged for the license as part of the cost of Sonar (and have that go up a few bucks) then get asked to upgrade every time I forget that Sonar doesn't offer this pretty basic feature stock. It's so odd to hear the "we have the best EQ of any DAW, best channel strip, best reverb, etc." for Cakewalk not to offer a basic feature like MP3 export.
It's time for Cakewalk to just suck it up, and change directions. MP3's aren't going anywhere, and if they really want to speed up my workflow: don't make me "pay to unlock" or go to a separate app to do an MP3 conversion.
BTW, thanks for the repost on the LAME link. That's a great workaround for now.