Buying Silver: Is This A Good Idea?

I recently decided to start purchasing one or more .999 one troy ounce silver bullion bars per month as an investment toward the future that would not take a big chunk out of my wallet. This month I purchased 3 of them to “start the collection.” I was wondering how financially sound it would be to continue the pattern through the next 10 or so years ( providing the price doesn’t skyrocket to near the cost of gold). I figure if all goes as planned, that by the 10 year mark I will have between 200-250 troy ounce bars of silver bullion. I watch the spot price on silver. I know that it is down at the moment, but figure (like the others in the precious metals list) that it will only go up as time goes on. I’m planning on keeping the obtained pieces through the next few decades (unless I could make a significant financial gain by selling it off at some point). It may be small bits of silver bullion here & there compared to some purchases, but I figure it’s both easy on the wallet & economically safe (just in the off chance that the economy takes another dive into what would be the second Great Depression). So what do you think… Good/bad idea? Any tips/wisdom you have to offer are welcome.