Tablets and laptop/desktops both have their place. Personally my feelings are very negative toward android, even though I have used an android tablet for almost 2 years. I think I just did not get a very good one which exacerbates the limitations of android. It is dog slow, has abysmal internet connectivity, is buggy as hell, and has lousy battery life. I do like the form factor, and like that it cannot get windows malware. OTOH, I have used Windows for 20 years and never had a serious malware problem either, and would not make do without at least one powerful device running windows.
I would like to use an i-pad for some time to see how it is, but they are just too expensive, especially considering that now you can get a windows tablet for less than an i-pad. Even without gaming though, just for online banking and such, there is still no real substitute for a desktop with a full keyboard and big monitor.
Online banking. Hmm. with my credit unions iOS app and ipad air I can do all of that stuff WAY faster on my ipad and more conveniently on the go than I can on the desktop. I can use the app to take pics of checks for deposit in about 5 seconds, oh hey built in camera. 5 seconds. Or the desktop version is cludging my way through the web, hooking my iphone or digital camera via USB, waiting a few seconds for it to sync, this takes longer than it does in iOS. For my online banking there's just no comparison, it is easier to navigate through the online banking app via touch and most of the important features are quicker on the ipad. Not to mention convenient to use anywhere.
Of course my CU has an iOS app. Your situation may be different. Desktop may be faster for you. For me it isn't, not even close.
Now the ipad doesn't do everything better. But it is very very nice. Email? Better on the ipad air. Browsing? About the same. Just different in terms of navigation. Once you get used to both, they're the same in terms of efficiency.
Some guys refuse to budge from their desktop because they're old school. I'm not stating that as a shot at you or even that it applies to you, but by and large, this is the case. Sadly, I was of this same mindset some years ago. Having used the ipad on the go for more than a year, I can assuredly state that the desktop is not faster for nearly any task in terms of basic use such as email, browsing, etc etc etc. It is just different. Once you get used to the ipad, you can do almost anything as fast or in a lot of cases - faster. Anything I can do in windows such as multitasking, copy pasting, word processing, I can do that on the ipad air. If I need a keyboard / trackpad, bluetooth, bam done. For basic stuff. Now obviously I can't use photoshop on my ipad. Not yet anyway. So the desktop is there when I get home late at night. When I need it. And the desktop obviously has merits and does some things better - but i'd say the stuff a desktop does "better" are applications which just aren't possible on tablets yet. Such as photoshop as mentioned. Stuff along those lines. I still like my desktop of course, i'm a desktop guy at heart. But some people I feel like are just close minded about tablets. I almost fell in the same trap.
Now i'm not trying to turn this into a desktop vs tablet war. I love them both. I do feel that some people are just stuck in old ways for whatever reason, I was of that mindset for a long time until I really really gave the ipad a go. Nowadays I really love the thing. As far as android goes, I feel that android isn't quite as good as iOS for tablets. Very subjective though. There are truly a lot of cheap junk android tablets out there. I'd like to give the 2014 nexus a shot whenever that rolls around, as the 2013 nexus was quite a good android tablet.