is it worth the extra $1k to go up to the 1715 since it only has an extra 3hp and everything else is pretty much the same spec wise.
One of the things you'll likely find is if someone bought a 1705 they'll say it isn't worth the difference lol. Well I bought a gc1715. I'm sure a gc1705 is a great machine. But here are things to consider:
1a. Most will highlight the seat. . But unless you have looked close you'll miss 3 big things about the seat. The gray seat on the gc1715 is "material formed" which means it will keep it's shape locked in place for years. The gc1705 gray seat is "material loose" so it flattens as it is used. Better back support and better side support come with the formed unit (comfortable but supportive).
1b. Under neath the gray seat on the gc1715 it has an entirely different metal bracketing structure which allows you to reverse the seat adjuster stop and gain about 3 more inches of leg room with no cutting or drilling or misalignment with sensors. the only thing it does is give you more room with no negatives. unscrew 2 bolts - spin the stop bracket 180 degrees and refasten the 2 bolts and you're done.
1c. The gc1705 is a coil suspension seat. The gc1715 is both coil and spring suspension. Soooooo . . . If you are on a washboard lawn or rough surface driveway or road etc., the gc1715 seat absorbs frequent small bumps better. In other words. . You don't get jostled about, because the spring suspension portion absorbs the smaller or more frequent bumps. Think of it like a car - you have springs and you have shocks both working together.
2. Now about the power differences. Not only do you add a few more HP but you also get an increased hydraulic pumps output.
Many ground engaging implements have suggested PTO hp needs. So how does added hydraulic pumps output and additional hp help other than for 3pt ground engaging? It means that you also get greater lift for a bucket or forks or grapple. As an example, at 2500 rpm I lift a pallet of landscape blocks xxx in quantity and lift it 42 inches. But becuase of the GC1715 design differences I can be at 3000 rpm and can add additional blocks onto that exact same existing pallet load and lift them to the same 42 inch height. Same with logs in a grapple or ????
And what about for mmm use. I have the dedicated MF mulching deck. With it I can cut up to 7 inch grasses without any problems even damp. And if it gets really healthy and thick grasses - I can further increase the hp available to keep a clean cut.
3. Then as mentioned there are the steel guards on the directionals is a plus and also there is an additional worklight wired and working on the ROPS. And if you want to make it led. . Then the wiring and mounting are already in place and you simply take off the existing light and put on an led. . Quick and fast. No wiring or rewiring to do.
Now seats on the gc1710 and gc1720 is another whole story because of the swivel situation once again bracketing is different.
Summary: Am I glad I spent $1100 for the gc1715 over the gc1705 ??? Though money is dear to me, I'd absolutely do it again. I notice big differences in combined comfort benefits and power differences in performance for my purposes. I'd say the same physical sizing benefits and convenience of a MF GC tractor and implement usage . . . . but with 10% more power and XX% more comfort I think it is worth the 8% change in price especially if you have a dl95 loader which offers higher weight limits compared to the dl100 loader. Or if you are using a mmm on a quality lawn that doesn't always have 4 inch grass and no dampness to it.
But both the GC 1705 and GC1715 are not only popular tractors - but also great performers. Its all based on buyers needs.