Hey Goran,
Hope you have fun on that tour. I understand your concern and you need to assess each situation separately. But I think it's important to play the bass you prefer on all gigs. You want to sound your best, enjoy the massive tone every time you plug in, enjoy the ease of playing that instrument, (look extra cool), and get lost in the music. If you brought a bass you weren't worried about it would make the playing less enjoyable and ruin the best part of the job. So in my opinion it is worth the extra hassle of hand carrying it if that's what the situation requires.
Here are a couple more things to think about...
#1. As Jazzyvee said, having good "replacement value" insurance is a wise decision.
#2. Do you need to fly to the first gig, or fly home from the last? If so you may need a road case plus a gig bag?
#3. You have to get in the habit of carrying it if that's what you end up doing.
What I mean is, when we have a day off on tour i will often take my bass out of its trunk and with me on the bus. Now it's with me in the hotel room. So if I want to step out of the room I'll usually stand it up behind a curtain, in a closet, under the bed, etc., not exactly hidden, just not obvious. I put a paper note on my door for housekeeping saying "no service today, danke". AND I lay a little note on the floor just inside the door that says "BRING IT". Because when I check-out the next day I don't want to leave the bass behind the curtain!! Don't laugh, I actually did that once on a vacation with my wife. We drove about an hour before realizing the bass still in our room under the bed. Luckily we got back in time to collect it, but I never made that mistake again!
If this is a known band with a great crew it's possible the guitar tech will be able to offer some protection for the instruments. You'll have to make that call when you get out there. But the bottom line is - I think its important to always play the best bass you've got and make the best sound. It's worth any inconvenience, in my opinion.
Have fun!!!
Jimmy J