Yeah I can completely understand people not wanting to have bases on their vehicles as well. There are pro's and con's with both cases. I ended up basing my small Polish Tankettes, but left the FT-17 and 7TP jw tanks without bases.
It sounds crazy but it was easier to pick up the tankettes, they seem more "solid" now, when I put them on bases. Before I was scared I would drop them.
I will post pictures of the painted FiB miniatures here tomorrow, just made small sand bag covers for the HMG teams out of green stuff. Figured I would start painting the small teams to get to know the models before I start with the large platoons.