Were there any other motivations, like looting and gaining lordship over new lands? And even then, was it even that good, or was the potential loot and lands exaggerated before they set off? I know people were more religious in the past, but to leave your entire lives behind en-masse? C'mon.
Hi lgmdnss,
While you wait for answer, you may be interested in these previously answered question:
Regarding forgiveness of sins:
You'll also want to read the replies to that answer, from /u/sunagainstgold and /u/Philip_Schwartzerdt, for additional detail.
Regarding motivations for crusading:
You may also be interested in the FAQ section for the Cause and Motivation for the Crusades.