Well I would say that you don't see modded Denon 5900's because the mod fad is relatively new. It has been picking up steam, but really only goes back a year or so. I know that mod companies have always been out there, but the Denon line really only became fashionable lately. I have heard of modded Denon 2900's though. I heard a Exemplar modded 2900. By the time mod companies became real fashionable the 2910/3910/5910 series was the established line from Denon. FWIW, I would think that a modded 5910 and 5900 would sound very similar, the difference would be the video performance.
As for the value of mods, this has been discussed here before and is a topic of hot debate. You may want to search the archives. Yes, I agree with Vman71, it does improve the sonics. However, make sure you plan to keep the unit, as you will never come close to re-couping your investment. You'll find that when selling modded equipment, even from a reputable mod company, you will have little interest and lose a bunch of money.
I do like listening to equipment from different mod companies, but I prefer to buy them with the mod already done, it's much cheaper this way. I currenly have two machines from different mod services. One had a $2800 mod that I paid about $500 more than a stock used one for, and the other has two mods totally $3600 that I paid about $700 more than a used one for. So figure if you pay for the mod yourself, if you ever sell it you'll get about 20-25 cents back on the dollar. Not a good investment IMHO.
I think modded units can easily compete with the more expensive stock units, however, the more expensive stock units will hold their value better and be easier to re-sell. So I personally wouldn't even consider modding your 5900. I would sell it and buy a already modded unit or a more expensive stock unit. This of course is just my opinion. I've been told before that it is wrong, mostly from folks who have paid top $$$ to have the original mod done themselves. Of course if you are handy like Vman71 and can do the mod yourself you can save a bunch of $$$, but just know that when selling, most people won't touch a modified unit. I notice that the views on my ads are cut by two-thirds if I even mention a mod was done. Even if the mod was done by a reputable service. Most folks won't touch a modified unit.
That is my experience anyway. You are free to do what you wish.
John
As for the value of mods, this has been discussed here before and is a topic of hot debate. You may want to search the archives. Yes, I agree with Vman71, it does improve the sonics. However, make sure you plan to keep the unit, as you will never come close to re-couping your investment. You'll find that when selling modded equipment, even from a reputable mod company, you will have little interest and lose a bunch of money.
I do like listening to equipment from different mod companies, but I prefer to buy them with the mod already done, it's much cheaper this way. I currenly have two machines from different mod services. One had a $2800 mod that I paid about $500 more than a stock used one for, and the other has two mods totally $3600 that I paid about $700 more than a used one for. So figure if you pay for the mod yourself, if you ever sell it you'll get about 20-25 cents back on the dollar. Not a good investment IMHO.
I think modded units can easily compete with the more expensive stock units, however, the more expensive stock units will hold their value better and be easier to re-sell. So I personally wouldn't even consider modding your 5900. I would sell it and buy a already modded unit or a more expensive stock unit. This of course is just my opinion. I've been told before that it is wrong, mostly from folks who have paid top $$$ to have the original mod done themselves. Of course if you are handy like Vman71 and can do the mod yourself you can save a bunch of $$$, but just know that when selling, most people won't touch a modified unit. I notice that the views on my ads are cut by two-thirds if I even mention a mod was done. Even if the mod was done by a reputable service. Most folks won't touch a modified unit.
That is my experience anyway. You are free to do what you wish.
John