As for an item: Going all the way back to 1992, I ordered an Ibanez SR885, which is a great instrument and I still own it. Just prior, the retailer gave me the Ibanez catalog to look through before making my decision. I really wanted the SR886 but no matter how hard I tried, I was not able to come up with the extra money for the 6-String. That sort of stuck with me through the years.
It would not be until 2010 when I had a renewed interest in music, and I managed to buy my first 6-String, a Warwick Thumb BO 6. It took me less then an hour to sit down with it and become comfortable with the neck, notes on the fretboard, etc. The tone was impeccable! From that moment until now, I own 9 (nine) 6-String basses and 1 7-String bass. And I already initiated 2 (two) new 6-Strings in 2019.
Seeing a musician (1): In 1996, I attended Drum Fest in Montreal with my drummer. I watched a lot of excellent drummers through the weekend, including Dennis Chambers, Virgil Donati, Tim Alexander (soon after he left Primus), and Anton Fig. Afterward, I found myself and our drummer working much better together. (Our drummer was already awesome. I was the one catching up to him. Haha!)
Seeing a musician (2): In 1997, I had the opportunity to watch a Peavey sponsored tour/clinic, Rock Across America with The Buddha" Bill Dickens (Bass), Bobby Rock (Drums), and Neil Zaza (Guitar). Seeing Dickens perform was life-changing. Each of the musicians hung around afterward to chat and they were quite humble. Dickens shared some techniques and information. He had studied classical guitar in the past so he incorporates some of those techniques in his bass playing. (He was playing a Peavey 6-String for the event, but I was aware of his Conklin 7-String and asked him about it.) Zaza shared an interesting practice tip, where he will turn on a cartoon, mute the volume, and play whatever inspires him from the screen.
Seeing a musician (3): When I first arrived in Vancouver, I learned that Alain Caron would be doing a clinic at a music store (Mother's Music, which had closed since), and I made sure to check it out. I'm sure the TalkBass community is well aware of Caron's praises.