Shiba Inu will be a very dominating coin in upcoming future. If you hold shiba for minimum 2 years or maximum 5 years, then you should invest it otherwise you invest other place as you want. I invest and hold 50% coin for 5 years and other 50% I can sell when I get a good profit.
I doubt shiba gonna dominates, right now even the trend is fading, these meme coins didn't even bring in new features they just recycled the existing features and call it a day.
instead, they could fade in terms of popularity as the time goes and eventually loses their value overtime. considering that there's new meme coins emerging every day, the share of shiba inu could be very well gets eaten slowly.
i'd definitely refrain from investing in shiba inu for long term.