Re: Inflatable vs aluminun ??
I have both: aluminum 14' geezer boat with 20hp, trailered. 11' Achilles RIB, 20hp trailered. Both could be cartopped with the right rack and friends to hoist them up, but I'm guessing you're looking at something easier to handle (smaller and non-rigid bottom inflatable) with lighter motor options.
Luvin brings up many good points to consider. Depending on the waters you travel and your intended usage, consider aluminum for its strength and lasting ability. There are still thousands of 40 year old aluminum boats still in use. Rental boats and camp boats and hunters boats are almost always aluminum because they take a real beating. If you are the primary user, very caring with your boats, and have storage available, a top-line inflatable might be the better choice for portability, stability, and setup by the waters edge. But for heavy use, metal gets my vote.
Interior space is also something to consider if ample floor space is a concern. Inflatables have limited floor area; the tubes take up lots of space.
On coastal inlets with sandy shores, I see lots of inflatables. The small mountain lakes where I fish have granite outcroppings and rocky shorelines. I'd guess that 90% of the small motor boats on those lakes are aluminum.
Larry