GYM vs Yoga Vs Home Exercises

Hi Guys,

I would like to know your expert opinions and experience about which is best ?

Target: reducing body weight upto 25 KG and gain overall fitness and then maintain it... ( big deal i guess to maintain it.... :) )

as we all aware that having busy with the work schedule it's sometime tough to follow your daily exercises routine. i think below pros and cons of each and need your views.

(1) GYM:
a. Pros:
i. Professional instructors with professional and detailed/personal guidelines.
ii. Expensive equipments to use, which optimize exercises effects.
iii. Will boost thoughts to go to gym (as we paid for that :0 ).
iv. Meet with like minded peoples.
v. Somewhat encouragements due to +ve results in shorter time....
b. Cons:
i. Bit costly.
ii. May not continue for life long, hence may have side effects. ( personal experience: I have lost 10KG in 7 months from 86 to 76, but as soon as I stoped, I gain a lot and now I am 105. :((( so bit scarry of side effects !!!!!).
iii. Due to sometimes traffic we may have to wait for the machines/equipments.
iv. Feels little lazy to hit Gym daily... ( though it's contradicts with Pros as well... I feel that too....)
(2) Yoga or Home exercises ( Yoga, Floor exercises and/or walking/running):
a. Pros:
i. We can do it at our time (bestest thing I feel...)
ii. Almost at no cost...
iii. If we determine then we can do it regardless of places.
iv. No dependencies no machines so, no other issues...
b. Cons:
i. May not that much effective as GYM in terms of results... ( not for body building of course... but also for normal good strength/power and overall fitness also I guess.. please correct me if I am wrong).
ii. Will less likely to discontinue as it is depends on our determinassion, so lazy peoples ( like me :) ) will tend to stop it sooner or later...
iii. No professional guidance so fear of doing it wrong and will endup having other physical issues... ( biggest threat I guess)
iv. Due to no guidance, will endup in routine which will have lower impact in our body ( as our body will usedto having same exercises daily).