The sad fact is that surplus rifles were only cheap when they were surplus. Now, except for the last mother load of Indian Enfields (~900,000) there are no large stocks to be sold cheap. Only way to get one is to have a fellow sell you his, and so prices are going up to reflect that. Prices are not excessive if we look at what new arms retail for , heck you can still get a used complete Enfield in the eastern part of the United Statesfor between 300 and 400 dollars, when a new commercial barrel is a 350 dollar item.
As for hoarders, well they will be the source of decent rifles that can be fired in 50 years. I suppose while it might be sad for fellows that want to play around with them today for a cheap price, they young men in the year 2065 that want to buy a shootable 1915 BSA or a New 1955 Fazakerley will be glad there were some hoarders in the last 100 years that bought but did not shoot these rifles. in any case as the years go by all these neat rifles were be fired less and less anyway, just the way it is. All things made by men go from being tools to relics. if you had a like new condition Colt 1860 revolver today you would not shoot it, if Enfield Riflesstill can garner interest in 50 years there will likely be an Italian
company making some sort of reproduction that you can shoot.