Please be aware that you cannot run non-DCS equipped locos on a DCS system. So if you want the DCS system, you might as well sell all of your non MTH locos too, as they will not run on DCS, because you can't buy DCS recievers and equip your other locos with them. MTH doesn't sell them separately. So with the DCS, you're completely limited to what locos MTH sells. DCS, being a totally proprietary system, is subject to the whims of the company. What happens if the company goes under? What happens if there is a setback at the company, more likely, and they decide to no longer support the HO version? Either way, you'd be stuck with a dead system, and no support.