merry christmas, i want a marlin pistol caliber carbine rifle to add to my collection and wanted to get some thoughts from those of you who know more than me about what is desireable. it seems most people look to the 44/40. i want the rifle for fun and collecting as i have 30/30 for hunting. should i go with a 38/40 or 44/40? i do not have a colt saa as of yet and will buy oe based on which rifle caliber i decide on. thanks for your help bill