As Andym says, it al depends if you've got the camping gear and have camped before! If you haven't and aren't sure if you will like it, borrow a tent and try it out. Good camping gear is not cheap, but it will last for a very long time if you choose carefully. It's also a bit like buying a bike if you haven't ridden one in years, maybe not wise to invest in an expensive one straight away, if you don't know whether it'll be gathering dust in a shed for the next few years or whether it'll be your pride and joy.
I'f you've never stayed away from home with your bike at all, break yourself in gradually, by going for a weekend somewhere scenic and not to far away ...
You could take a train somewhere not too far away and cycle back over a couple of days, staying in a B&B or hostel. Neither involves carrying tent/cooking equipment/sleeping bag, but you'll still have to take a minimum tool kit, water proofs, some spare clothes and some food & drink, and perhaps a map or two ...
When you get back home, the bug may have bitten, and then you are in trouble.
If you prefer to travel lightly, credit card touring is the way forward.
If money is an issue, camping/hostels will be a lot cheaper.
If you want to be really flexible and not book ahead (in busy places or during main holiday times), camping is the way to go ... but it doesn't stop you from a night in a B&B occasionally, if the weather is carp.
Good luck - I'd just give it a go, during a nice spring weekend some time soon!
T