My 2p. We sold up a couple of years back, and spent a few months in our camper. I thought of getting a van and then doing a diy job. Consensus seems to be that unless you are keeping the van for a long time, then this is a waste of money, as proportionally, you'll not get monies spent back. Dependant on where you want to go (in Europe) a caravan would be a nightmare on some of the more minor roads, whereas we only nearly came unstuck once (unmarked low bridge) with our camper.
As to campervans needing packing away before leaving, the only thing we did was turn off the gas bottle, push in the step and wind in the awning. Two minute tops.
I wouldn't have one for the odd weekend away though, as storage, depreciation, and basic running costs soon add up, and make hiring one for even 4 weeks of the year seem a better proposition.