There is a alive box set with both 97 and 07 on vinyl plus a really nice book and limited edition white vinyl. Not that limited though since still readily available on Amazon: Alive 1997 + Alive 2007 (Boxset)(4LP Colored Vinyl w/Digital Download) https://www.amazon.com/dp/B00PCGY9OU/ref=cm_sw_r_cp_apa_i_.ZM-Cb5H2TVJS
Is it not cheaper on Amazon? I got mine for under €80 including delivery. Maybe that's just Europe though. And I've no idea about exchange rates haha!
Either way, it's an amazing collection!
I'm not sure why it was omitted from the standard release but you can get a limited edition boxset which includes Alive 2007 on white vinyl, Alive 1997 on silver vinyl and, most importantly, a white etched 12" single which contains the complete encore. It's a little pricey - but keep an eye out as Amazon discounts it by 50÷ once every couple of months!
Amazon Italy has it for $55 if anybody's interested https://www.amazon.it/Box-Alive-2007-1997/dp/B00PCGY9OU/ref=sr_1_1?ie=UTF8&qid=1527367395&sr=8-1&keywords=daft+punk+alive+lp
Nice link! If you're in the UK:
https://www.amazon.co.uk/Box-Alive-2007-1997-VINYL/dp/B00PCGY9OU