It seems that most people upgrading to the PMG preamp are comparing it to the BHK. I am shopping for a new preamp and have not had any previous or current models of PS Audio preamps. I have the Stellar P3 regenerator and the DSC MKII DAC. Both of the purchases were made within the past year. I need a preamp but am balking at another major purchase so soon. The Stellar preamp fits my budget but I am wondering if it will be a good long term choice or if I will feel the need to upgrade again in the near future. Currently I am using a 30 year old Audio Research LS-15 which has been great but is in need of service…hence my thinking to move on to something new. I am interested in hearing from anyone who has compared the Stellar pre to the PMG. Have you upgraded from the Stellar to the PMG? and if so how would you compare them sonically. Just reading the general description it would seem that the Stellar is much closer to the PMG than the BHK. Am I wrong? If I remember correctly they were both based on the designs of Darren Myers. I would appreciate any information you would like to share. Thanks.
While I do not have the PMG preamp, I did have both the SGCD and the BHK preamp. The BHK preamp is much better than the SGCD, and many forum members report that they strongly prefer the PMG to the BHK. If the price if the PMG is simply way out of financial reach, the Stellar Gold might be a good option if you’re looking at new PS Audio gear. There are also options on the used market. The Music Room is a great place to get used upper level gear at reduced pricing.
Buy the SGCD and with time you will wish you had opted for the PMG, after all it is human nature.
Cave to your desires, it is only money 
I think the PMG will be the long term choice. It leaves the BHK in the dust. Completely different class. See what you can get for your current preamp, and what else you adjust in your budget! If it can stretch, you will be so very happy with the PMG for many years!