Buy a share in something and treat the share price as an asset that can later be released ... That way there is no cost as such over the monthly and hourly rate. Lots of cheap flying to be had that way.
I have a Piper Cub share .... £1500 to buy in. £350/year fixed costs and £40/hr wet. So discounting the share cost, £2k would give me around 40 hours of flying or a bit less if touring and paying landing fees at other aerodromes (it's private strip based with no home landing fees). My budget per year is around £2-3K btw.
SS