rotavator buy or hire?

our allotment doesn't have a rotavator which is the best option to buy one or hire one?
I have found a hire place for £37 for the day - is that a good price?
I have a half plot and it is hard going hand digging through the weeds, I know I will need to deweed it and get the roots out but I do need to loosen things up to get it well dug.
Grendel

£37.00/day isn't a bad hire price. Look at it this way.. I know its useful to have tools and machines hanging round "just in case", but how often are you going to use it? Once a year? Only once? Once every 3 or 5 years?

well the plan was to use it once to break up the soil, with the intention of digging in future. but it does depend how well it digs the plot over. one secondary plan was to get one from ebay and use it then maybe resell it on ebay, as I dont really have space to store one. maybe a trial hire to see how it goes.
Grendel

I have been looking for a second hand one and they all make good money, at £37 a year it will take a while to make it cost effective to buy one.  I am still looking tho just using my Ryobi tiller still at the moment.

We bought one of those 700w electric ones, was well pleased with it, but overdone it and stripped the helical gearing cog to the motor ended up giving to scrap. couldnt get anywhere to get spare parts emailed the original supplier and got no reply, It served well for two yrs though.
We have a Petrol one (ebay) but that is playing up at moment and I have just spent a day tinkering - drilled out old cotter pins to be able to get blades off, hrs later and several broken drill bits and a bit of welding.
Then the engine started at moment lacking power to put into ground. so the hire for £37 looks the more appertising at present,
Plus point, you use then return it when finished and dont have to worry about theft of when stored. and space is also problem. although the litte electric didnt take much.
But the back breaking dig Vs Rotavator workout.
I know what I think is best (BOYS TOYS)