If you are looking to buy art as a financial investment, then you should try buying stocks instead. It all depends on many factors, most of which are quite unpredictable as artists' popularity and demand rise and fall and sometimes rise again. Nonetheless, it is an opinion and an educated guess at best. This would usually happen at auctions, or in galleries where art is re-sold, rather than in galleries where the work of living artists is sold. For example, some English prints sell for lower prices in the US than they do for in Britain.
Print is the most abused term used in the world of art.
A true print is something that the artist has created by hand, such as an etching, or a woodcut or a linicut. The point is that the creation process involves the artist in control of what gets created. Everything else is a reproduction. An Iris print, gyclee print, etc. are just digital reproductions of an artist's original work. There's nothing wrong with reproductions, if that is what you want to buy, as long as you know the true difference between reproductions and prints.