I have been investing for a couple of decades now. All my MF units were in regular plans to start with, because (as far as I knew) there was no such thing as direct plans till a few years ago.
I have never ever got anything of value from paying the commissions for regular funds, over the years. Those commissions were an underhanded way of getting money from me without me being aware of it, any which way I think of it.
Once I learned of this difference, I shifted completely to direct plans.
@Pradeep_Golekar : Any analysis you need for help with mutual funds—anything that you can imagine needing—is available for free from various different sources. I currently use Kuvera to keep track of my MF portfolio, and VRO for comparisons and analysis. There are many other completely free options for getting these jobs done, as well; these just happen to be what I have currently settled on. And they don’t cost you a single paisa. Do not pay needless (and sneaky, if you ask me) commission by buying regular funds.
Note that you pay commission to finvasia every single day and on every single regular MF unit that you hold, in the form of commissions which are cut directly before announcing the NAV. And you pay this money irrespective of whether you yourself make a profit or not! And this can amount to a significant sum over the years, as you can see from the NAVs of the regular and direct variants that I quoted for Aditya Birla Sun Life Frontline Equity Fund in another comment above: the absolute percentage difference on the purchase cost over some 8.5 years was around 23% in favour of the direct variant.
@nagmasarin : I am very curious to know what these analytical tools are, which are not free-of-charge elsewhere, and for which you are willing to pay so much. Could you please give a couple of examples of the kind of analysis that you pay finvasia for?