Nah snap on don't actually sell kits, you just buy the individual parts and then buy the tray to keep them in. I know in NZ that kit would be around $1200 to buy. The S80a rachet are $280 (I have one of these) the deep 3/8" flank drive sockets around 350 and the shallow sockets about the same. The kit of 3/8th extensions is like 350-400 (don't know what individual bits are worth) and then the tray/carry case is 120 in top of all that. It may be expensive to buy that will be the absolute best socket set you could ever get.
Most of my rachets are snap on, my sockets are Koken and snap on and my spanners are sidchrome 440 series flank drive. I only keep tool kits in my old beater or classic cars, my late model cars don't need them. I have a little beginner tool kit that had spanners 8-24mm, a 3/8th 8-19mm socket set and a couple of sets of pliers, a hammer, an oil filter wrench and some screw drivers. They are a junk set that come included with these busses we buy out of china, for a set that costs me nothing though (I've left them in cars when I've sold them) it's a remarkably handy tool kit for little break downs.