I just sold an AI and have now a couple months in the TI. Personally, I would keep the AI around just because its easier to transport and launch when you want to solo. But I'm still not used to the TI, so perhaps I'll change that opinion.
I could beach launch the AI anywhere with a simple dolly. Dollying the TI is a whole other issue. Only really reliable way for all kinds of situations is the big, wide, expensive full cradle type dolly, that costs 375 or more for the beach wheel type. It's also just large to have in a car or van, whereas the AI dolly is simple and small.
You just have to think that the TI is larger and heavier and so it takes more to do anything with it. The AI was the perfect size and weight for one person to horse around.
Do I sound like I'm missing my AI? Well, like I said I haven't tweaked the TI yet to get things the way I like them, so I'll just give it another season. But for two people, the TI is awesome--no queston.
I actually got a TI (never owned an AI) and with the hassle of transporting it to and from the ocean, I might go ahead and get a AI too. I like sailing solo on the TI, but it's very difficult for me to transport it to and from the water by myself. I am still young and in good health too so I could only imagine the difficulty older people may have. And like you, I only had my TI for a month so maybe once I am more efficient in managing my IT... I would think differently too.