Quote; "might have the chance at a caravan job then after a while maybe a C90"
Stormy, perhaps slight thread drift.....
Putting aside the ultimate need for multi-command (no argument there), flying something is better than nothing (staying current and being close to the coal face and grape vine). Adding some turbine experience to your repertoire won't hurt.
A foot in the right door could always lead to bigger and better things. Most people don't get the twin job handed to them as the first machine they fly for a particular employer (unless you already have the multi experience, but you have to get that first)
Don't spend too much time sitting on the sidelines waiting for someone to hand you a twin job, and refusing anything else.
Generally speaking (not necessarily directed at you Stormy), I think the recent wave of prosperity that has passed has made people a little complacent. Nothing wrong with the Caravan. A couple of years ago one would have been ecstatic about the opportunity to fly one.
Yes it goes in the same column as the 152, but which a/c would better prepare you for the twin opportunity when it comes up.
Pick a niche that's right for you, and a company that can offer progression and stick to it!
Good luck!