Glad you found us!
Orchids can cost more than some other 'house plants', but many can take a few, to several years, before they are bloom size.
That said, many can be found that aren't too pricey - as Rosie said, younger plants (even blooming for the first time) will be less. I hunt around, and most of my orchids have been less than $20, many even $10 or less - tho, yes, they are usually smaller - some blooming for the first time, some near bloom size, a few seedlings.
Shopping around is a good idea - some places just sell them for more than others.