I did study it a bit, but there are drawbacks. Just my personal position in life, but I can squeak by and pay for the Sea Piper, but the Ranger 31 s or sc are both over width and twice the money. Just out of what I can justify.
the Sea Piper will cruise at about 7 knots at a gallon an hour. Top speed around 9 at a much higher fuel burn. Although I haven't seen the fuel burn on the Ranger, at 320 hp, top speed of 16, you don't gain a lot. But, I'm sure fuel burn goes through the roof. I doubt you'd spend much time at those speeds, but I doubt at the same speed as the Sea Piper, you'd get anywhere near the fuel economy. I've talked to several people with big sport fisher type cruisers. They can go much faster - but even if they can afford a million $+ boat, they stay below hull speed on long passages. They say they can't afford the grossly higher fuel cost. If they can't, neither can I! But, I guess the point is, all that extra HP would be wasted.
One thing I don't get - My 40' sailboat with 30 hp would get about 6-7 knots at a lower throttle and burn roughly 1/2 gallon an hour. Not sure why the Sea Piper needs so much hp. I guess for margin of safety in bad weather. Just think if it had a roughly 30 hp Yanmar, old fashioned mechanical injection diesel. Run forever - 8000-10,000 hours with little maintenance, and probably have a range of 3500 miles or so.
Move the pilot house forward, put in that old Yanmar, I'm in.