At PG Music 129$

https://www.pgmusic.com/bbwin.packages.pro.htm

At SweetWater 99$

https://www.sweetwater.com/store/detail/BIAB21ProW--pg-music-band-in-a-box-2021-pro-for-windows-download

Is there any difference?

If I buy from SweetWater, will all the features and support be same ?

How SweetWater sell it for lower price?